Do-it-yourself replacement of water supply risers in an apartment. We change the water pipes in the apartment with our own hands. Accounting and control

Rotted old plumbing in the apartment. Perspiration on the pipes, fistula after fistula; turn off the water, and then turn it on again - rust is gushing from the taps. And it is planned to repair the kitchen with a bathroom, and the old pipes are not something to touch or breathe - it's scary to look at them. We need to change, but the work is expensive. Is it possible to replace the apartment plumbing with your own hands? Yes, you can, and without any permits-designs. It will only be necessary to agree with the DEZ locksmith to shut off the water supply to the risers for a maximum of an hour; most likely, it will be possible to manage in 10 minutes. Or warn the neighbors, if not harmful, and block / re-apply yourself.

Replacement procedure

The replacement of the water supply is carried out in a certain sequence. Work "by eye" and "on the go" in non-professional performance often ends in a leak. The work plan is something like this:

1. Choice of material for new pipes.
2. Choice of hot and cold water distribution scheme.
3. Development of a water supply scheme for an apartment.
4. Calculation of the diameter of pipes according to the selected material and scheme.
5. Preparation of the mounting tool.
6. Purchase of materials.
7. Assembly of selection and accounting units, their installation on risers and registration.
8. Dismantling of old pipes and plumbing fixtures.
9. Connection of HMS and aquastop, if provided.
10. Connecting a flask filter (with HMS is required).
11. Installation of hot and cold water pipes.
12. Installation and connection of plumbing, old or new.
13. Test water supply; elimination of identified defects.
14. Installation and connection of the boiler.

HMS, flask filter and aquastop

HMS, or hydromagnetic system, has long been used in industry to prepare water for filtration. In everyday life, this device, without going into details, converts impurities in water into a fine suspension, which then settles in the filter in the form of sludge and is periodically removed. HMS is absolutely harmless, does not require power supply and maintenance during operation, but it necessarily requires the installation of a water meter in an antimagnetic design (these are more expensive) and, after the water flow, a combined flask filter.

The flask filter consists of three sections connected in series: the first one collects sludge, the second one removes chlorine, and the third one is used for fine purification of water and its softening. The latter (no one has been drinking tap water for a long time) is especially important for the washing machine boiler.

HMS with flasks cost a lot, but they protect well not only equipment, but also health. Complain or not, be indignant - do not be indignant, and drinking water is firmly held in the ten most scarce resources in the world, and there are no global programs that can bring its quality to the level of at least the middle of the last century, and are not foreseen. In general, the salvation of drowning people is the work of the drowning people themselves.

Aquastop is also a useful device, it also does not require power supply and maintenance, but its function is different. With a sharp increase in current (breakthrough) of water, the aquastop is triggered and its valve cuts off the entire apartment from the riser. Aquastops come in different systems, including electrodynamic ones, so an anti-magnetic counter is also needed when installing an aquastop.

Pipe selection

A new plumbing in an apartment begins with the choice of pipes. Steel in everyday life has become obsolete, and you have to choose from metal-plastic, plastic and brazed copper. This stage of work is perhaps the most responsible - the wrong choice will nullify all the efforts, expenses and troubles.

Copper

One can say about copper water pipes right away: their propagandists do not know what they are talking about. Or they know, but they don’t set themselves. Firstly, copper oxide forms on copper in contact with water - the same verdigris that Tom Sawyer talked about to Huckleberry Finn. Yes, a person needs copper, but in negligible amounts in the form of a microelement, and not as part of a strong poison. As a counterargument, they say that copper forms a protective film with chlorine from water. Absurd for anyone who remembers at least school chemistry.

Secondly, the composition of the solder for copper includes tin. White tin, a soft metal, over time turns into its other, as chemists say, allotropic modification - gray tin, a crumbly powder. That is, by installing copper pipes (very expensive), we thereby 100% guarantee leakage. And the payment for the work of a company specializing in copper pipes, since it is impossible to solder them correctly on your own.

metal-plastic

Metal-plastic pipes are quite expensive, but they can be connected by hand without experience. Metal-plastic plumbing is assembled on special threaded assemblies with gaskets or under crimping - fittings. In addition, metal-plastic pipes can be smoothly bent. Hydrodynamic resistance and pressure loss in metal-plastic are very small.

To insert a pipe into a fitting, you need a pipe cutter, press tongs and a set of reamers (reamers) for the diameter of the pipes. With their help, work goes effortlessly, and with improvised means - a full guarantee of leakage. In addition, the life of gaskets in fittings is limited, and over time, the joint begins to drip. Therefore, bricking metal-plastic into walls is unacceptable, and it is strongly recommended not to hide it in strobes.

It is recommended to carry out water supply with metal-plastic in separate open areas, where the minimum resistance to water flow and the possibility of a simple and quick bulkhead of the joint are important: when connecting a boiler, washing machine, sink, etc. Adapters from metal-plastic to other types of pipes are always on sale.

Plastic

Plastic apartment plumbing has now become the standard, but plastics are different. To make the right choice, you need to know their properties and features.

Polybutylene (PB)

Flexible plastic with good thermal conductivity for plastic. Holds temperatures up to 90 degrees. A properly soldered joint is absolutely reliable. Pretty expensive. Used for underfloor heating.

Polyethylene (PE)

Cheap, but for hot water, polyethylene reinforced pipes are needed; ordinary polyethylene does not hold 60 degrees. It is impossible to bend and glue, the soldered joint reliably holds a pressure of no more than 3.5 atm, and the water pressure in the city water supply can be up to 6 atm (0.6 Mbar) for cold water and 4.5 atm for hot water, so that there is a possibility of a sudden breakthrough. Hydraulic resistance, however, is the smallest of all.

It seems that polyethylene pipes are bad for everyone, but they have an advantage that can be worth all their shortcomings: they are not afraid of freezing. The ice cork bursts them, and when it melts, they shrink again, and do not burst, even if you crack. Therefore, the installation of a polyethylene water supply system is strongly recommended in unheated, seasonal and underground premises. There is no alternative to polyethylene. But with a constantly filled system, an aquastop is needed.

PVC (PVC)

The properties of polyvinyl chloride (PVC) are quite well known: chemically resistant, inexpensive, heat resistant up to 80 degrees, easy to glue, but not very strong and afraid of ultraviolet radiation. Joints, both soldered and glued, come out more brittle than solid material, so the danger of a breakthrough remains and an aquastop is needed. Replacing individual sections of glued PVC, of ​​course, is more difficult than for collapsible metal-plastic, but easier than for soldered joints: heating the joint with a household hair dryer, the joint can be separated, and then glued again. In general, the option is budgetary or for a novice master with a length of the main branch from the riser to the farthest point of water intake of no more than 10 m and with no more than 7 sampling points.

Propylene (PP)

Laying an apartment water supply with polyisopropylene pipes (propylene) is now generally accepted. The material is not very expensive, durable, resistant, soldered joints retain all the qualities of the base, heat resistance - up to 130 degrees, properly soldered holds up to 12 atm. The hydraulic resistance is higher than that of PVC, but anyway, the accumulation of plaque in the lumen is minimal, and with HMS it is excluded. There are only two disadvantages when doing it yourself:

• It does not stick, and soldering requires special equipment and strict adherence to technology.
• It has a fairly high coefficient of thermal expansion. Immured in a wall or hidden in a strobe, it can bend and break the tile, therefore, when laying each pipe, you need to put on a stocking made of merylon or synthetic winterizer, which increases the cost of work.

However, the propylene pipeline is by far the only one that can be done once and for all and forgotten. Therefore, we will dwell on the soldering of propylene separately, especially since the soldering of other plastics differs only in a lower temperature (110-130 degrees for polyethylene and about 150 for PVC).

Propylene soldering

Soldering propylene with a handicraft “iron” soldering iron end-to-end (see the figure on the right) is unacceptable:

1. Pollution accumulates on the “sausage” inside, and the pipeline assembled in this way is more prone to clogging than steel.
2. The pressure of the water, bursting the pipes, tends to break the joint. At 16 degrees in the pipe and 20-25 outside, after about three months the fatigue threshold of the material is surpassed, and the joint flows.

The assembly of the propylene pipeline is carried out on fittings for soldering - straight (for connecting pipe sections), angled, tees, crosses. The pipe heated to softening is inserted into the holder of the also heated fitting, and the joint freezes. In this case, the water pressure, on the contrary, presses the pipe against the casing from the inside, providing strength, and only sealing remains for the fused zone. The rather high rigidity of propylene does not allow the clip covering the pipe to expand elastically. It is this design of the connection, combined with the properties of the material, that makes the propylene pipeline suitable for immuring into walls for decades.

Note: a more or less decent soldering iron for propylene costs at least 2000 rubles. and is still unsuitable for something, but does not wear out from work. Therefore, you do not need to buy it, it is better to rent it.

• For hidden wiring in a typical apartment in strobes or monolithic - definitely propylene.
• For branches of great length with a large number of points of water intake - open metal-plastic or in channels with removable covers.
• For country houses, seasonal rental housing, country houses with remote outbuildings, greenhouses, etc. - polyethylene.
• For budget repairs or in areas with a shortage of water, low pressure in the water supply, with poor quality water - PVC.

Wiring diagram

Collectors-combs

There are two schemes for drawing water in the premises: serial and parallel. With a serial scheme, the points of analysis are connected to a common pipe through tees. This scheme is the most economical, but with a long wiring length, a large number of parsing points and / or with low water pressure, it is not suitable, as it greatly reduces pressure.

In this case, the water intake is done in parallel from the “comb” collector, see fig. A comb is an assembly of bypass valves, from each of which there is a solid branch to its point of analysis. The valves regulate the pressure separately by points. The branches to the points are made of metal-plastic or polyethylene: in this case, their low hydraulic resistance plays a role, and when laid in a single piece, they are quite reliable.

Development of a water intake scheme

The water supply scheme in the apartment is needed primarily for oneself, so as not to get confused, not to miscalculate, and then to know exactly where everything is - no special permission is required for this work. But when registering the meter, the water utility inspector may ask you to look at the diagram, so you need to draw it correctly.

A complete scheme according to all the rules is a serious job for a knowledgeable specialist; for example - in the large figure, the water supply scheme of a private house with a summer kitchen, which is necessary for the project to be approved. But to replace the pipes in the apartment, you don’t need to bother like that, it’s enough that the diagram clearly shows and understands:

1. Hot and cold water pipes, their type and lumen diameter.
2. Metering devices.
3. Emergency valves and drains.
4. Stop valve.
5. Points of analysis with indication of consumers.
6. Backup branches and devices.
7. Direction of water flow.

To make all this clear not only to yourself, or to yourself a year later, certain rules must be observed when drawing. Let's look at examples, see fig. On the left - more or less okay, but with comments, on the right - wrong:

• The scheme on the right is made in isometry - for beauty, or what? The intersections of the pipes confuse her, and she does not give an idea of ​​\u200b\u200bthe real location of the analysis points: the washing machine with the boiler comes out under the floor.
• There are also too many current arrows where it is already clear where it flows, which also confuses the circuit.
• In the same place, shut-off valves with metering devices are depicted indistinctly and not according to the rules.
• In the same place - the type and diameter of the pipes are not indicated.
• In the same place - who, where and when saw that water was supplied to the boiler from above, and the toilet was flushed through the ebb?
• But in the diagram on the left, it’s not even clear to a specialist that the boiler (6) is a backup. The remark will be: “Where is the check valve for hot? Without it, when the supply is stopped, the boiler will drive its own into the hot riser if the valve (10) is not closed. But this is already in essence and with full understanding.

Correct simplified plumbing scheme in the apartment

An example is arbitrarily, not according to the rules for designing design documentation, but completely understandable and without frills, the completed water intake scheme is shown in the following figure. This is also an example of a parallel drawdown; where the combs, of course.

Pipe calculation

Before finally choosing pipes, you need to calculate at least approximately their diameter. This is not necessary for "smartness" - the narrower the pipe, the cheaper it is, on the one hand. On the other hand, a too small diameter pipe for a water supply will cause turbulence in the flow in it. At the same time, the throughput of the pipe drops sharply, and at normal pressure at the inlet from the tap it will barely ooze.

The exact calculation of the pipeline is a matter of highly qualified specialists, but for a city apartment, in order to flow normally, you can figure it out yourself. The initial data is:

1. The minimum allowable pressure is 0.3 at.
2. Pressure loss per 1 m of a 16 mm propylene pipe - 0.05 at.
3. The average pressure loss for apartment wiring per unit of fittings and fittings is 0.15 at.
4. Pressure loss in the selection and accounting unit - 0.25 at.
5. With normal values ​​​​of pressure at the inlet to the riser of 1.5-4.5 atm, periodic turbulence is inevitable in a 12 mm pipe, and is not observed in 16 mm pipes.
6. The headroom for the farthest point is at least two times.

It remains to find out the pressure (pressure) at the inlet, and you can determine whether, with the serial wiring of such a running pipe, there will be enough pressure for the farthest faucet or you will have to take it wider and more expensive. The pressure at the bottom of the riser can be obtained from the pressure gauge in the basement or from the building operator; then subtract 0.6 atm per floor. You can also estimate for the neighbors based on the same 0.6 at / floor: if, say, three floors up from the taps, it still flows, then we have a good 2 at. But in high-rise buildings, such a trick does not work: in order not to overly increase the cost of apartment wiring, they make separate risers for the lower and upper, and even for the lower, middle and upper floors.

Calculation example: the second floor of a nine-story building; the residents of the upper floors do not complain about the water. We have at least 4 at pressure. 11 units of fittings (5 tees, 6 elbows, 1 valve) give 1.65 atm losses. The length of the pipe from the riser to the far wall of the kitchen is 6.5 m, which is another 0.325 atm of loss. In total, with the selection and accounting unit, we have 0.325 + 1.65 + 0.25 = 2.225 atm of losses. Too much, you need to check the pressure with a pressure gauge and, most likely, take the main pipe 20-25 mm, or bred in a parallel pattern from the comb, otherwise you can stay “dry” in the dry summer.

Note: from this it is clear how important it is to straighten the pipes and how undesirable they are to lengthen and clutter up with fittings.

The dependence of losses in pipes and fittings is non-linear: they depend on the flow velocity, which, in turn, depends on the cross section of the pipe lumen. A slight increase in the diameter of the pipe drastically reduces losses, so the usual 20 mm pipe wiring for apartments with taps to 16 mm points works well in most cases. In difficult cases, an accurate calculation can be made according to SNiP, internal water supply and sewerage of buildings. There are all the necessary formulas and nomograms; the calculation can be done by a person with an engineering education of any profile.

You just need to keep in mind that on this account there are already three SNiPs with the same index: 2.04.01-85, 2.04.01-85 (2000) and 2.04.01-85 * “(Domestic water supply and drainage systems in buildings) ". Correct - SNiP last.

Tools, materials, dismantling of the old

Special tools for assembling apartment pipelines are described above in the course of the presentation. For the purchase of materials, of course, you will need to calculate the footage, nomenclature and quantity in place. Dismantling of old pipes is done in the usual ways. It is better to do it after installing and registering the water meter, so as not to turn off the water to the floors for a long time.

We will give only one piece of advice: do not take valves with a lever. It is made of silumin or plastic and tends to break off at the most inopportune moment, just when you need to urgently close it. Take ball valves with a butterfly handle. Round corrugated handles also do not break, but wet or sweaty hands slide on them.

Accounting and control

The selection and accounting unit consists of a shut-off valve, a coarse filter, a water meter and a check valve. Assembled as shown in the picture. Each of the devices indicates the direction of the water flow for it, it must be observed during assembly.

The assembly is assembled with waterproofing of the connections with the FUM tape and is also connected to the riser, having previously blocked the water; Remember to close the shut-off valve before supplying water. This is the only operation, and a short-term one, requiring turning off the water supply to neighbors in the riser.

Separate meter units are needed for cold and hot water. It is highly desirable that the counters and valve handles be highlighted in color. The meter readings should be clearly readable without any additional operations (hatch removal, etc.), so it is often necessary to pre-assemble a part of an integral pipeline, sometimes of a rather bizarre configuration, to connect metering devices to the riser. In addition to pipes and a soldering iron, this will require transitional couplings from plastic to metal MPV - a threaded inner coupling. Plastic is connected to metering units using MRN - external threaded couplings.

The meters are sold sealed, but this does not mean that you can immediately call the water utility and pay for water at the expense. The factory seal is for this (the Russian land is rich in craftsmen) so that no one gets into the meter and twists or files anything there. The factory seal must be protected; without it, the meter is considered unusable, as well as without a certificate for it.

When installing water meters, you need to declare to the water utility and call its inspector. You can use water before he arrives, the inspector does not need zero readings, he will write down the initial ones, seal the meter and filter drain with his seal. Payment for water consumption will go after registration of metering devices.

HMS, aquastop, filter

Although the design of the HMS is non-separable and does not allow stealing water with its help, and this device cannot be sealed, connecting the HMS to the meter is unacceptable: the meter impeller can become clogged with sludge. HMS with a flask filter is connected after metering devices; filter - immediately after HMS. An aquastop can be connected immediately after the filter, but if it is electrodynamic, the magnetic field of the HMS can cause its false operation, but it makes no sense to attribute the aquastop far from the riser: it does not react to a breakthrough before it.

Video: an overview of the layout options for plumbing elements

Pipeline installation

So, now we do the plumbing. The assembly of pipes has already been described, but the installation of the entire system also has non-construction features, such as the arrangement of channels in the screed. The latter should pass no further than 150 mm from the wall and no closer than 200 mm to the furniture. Plumbing fixtures, of course, are removed before starting pipe laying.

First of all, you need to install arcs - plastic strips with MRV squares for mixers. They are attached to the main wall with self-tapping screws in dowels. When attaching, you need to take into account the thickness of the finish: plaster and tile or other decorative coating.

Without a lot of building experience, it is very difficult to achieve the location of the outlet nozzles flush with the wall. It is better to make them PROPERTIES above the finished wall half the width of the side of the decorative faucet caps: if the caps are unregulated, they can be easily adjusted on an emery wheel or manually on an emery bar.

The next moment is the assembly of pipeline sections. The most convenient way is to assemble it on the table and put it entirely in strobes. But then the question arises: how to run pipes through walls? There are no problems with metal-plastic, it is all on detachable fittings, and for brazed pipes, two methods can be offered:

• With the help of MPH / MRV adapters and metal-plastic inserts. In an apartment, this is quite reliable, and in the corners above the strobes, you can make removable hatches for revision and repair of threaded connections.
• Install pipelines locally. This requires a compact soldering iron. This one is more expensive, and you need to work in cotton gloves so as not to accidentally burn yourself.

The fourth point is soldering. One solder takes 15 mm of pipe. That is, if there is exactly 1 m between two fittings, you need to cut 1030 mm; if 0.6 m - 630 mm etc.

The fifth point is the bending of metal-plastic pipes. The minimum allowable bending radius is 5 outer diameters of the pipe. You can come across recommendations: they say, put a spring in there, fill it with sand, and you can generally bend it at an angle, and pull out the spring and pick out the sand with a wire hook. In no case: the coating of the pipe deteriorates, the residual stresses in it are much higher than the permissible ones, and the metal-plastic pipe acquires the properties of a very poor rusted steel.

And finally, . This is a separate production cycle, and it is done after the commissioning of the water supply system. The pipes for the boiler are made in advance, but the valves on them (they are definitely needed on both) are blocked immediately after the pipes are installed, and the pipes are additionally muffled.

Video: an example of a mounted plumbing

Outcome

Now you know how to make plumbing with your own hands. We emphasize that this work is not their difficult or difficult, but it does not tolerate negligence and hack-work.

If you have been living in your apartment or house for a long time, you must have faced the problem of leaky pipes. When replacing a water supply riser in an apartment becomes an urgent problem, you should try to solve it as quickly as possible, because otherwise you may encounter a leak.

Theoretically, the consumer should not independently carry out such work if he uses the services of housing and communal services, but in reality everything is different. Therefore, it is better to do the replacement of pipes with your own hands.

Pipe selection

By visiting the market, you can find pipes from different materials, namely:

• polypropylene;
• become;
• copper;
• metal-plastic.

It is best to refuse steel and copper. This is due to the fact that copper, although quite strong and durable, is not suitable for plumbing, because the quality of the water in such pipes can become too low for drinking. As for steel products, they lose to modern polymer options in terms of price, performance and ease of installation.

There is another factor that makes steel pipes to be abandoned, which is expressed in the fact that it is almost impossible to install them yourself. The result of all this is that you have to choose between polypropylene and metal-plastic pipes. These options are great for self-installation.

Replacing a water supply riser in an apartment may involve the use of metal-plastic structures that are reliable and allow connection without the use of additional tools. Such pipes are quite flexible, but the cost of construction can be quite impressive. Connection points must be checked over time, as they are weak links in engineering communications.

It is better if the riser is mounted from pipes of the same type, this will reduce the risk of damage and leaks. If you want to save money, it is better to choose polypropylene pipes, however, to connect them, you need to master certain skills. You will have to use a special soldering unit. This method allows you to achieve a reliable and durable connection. If an error is made during installation, then the situation can be corrected by attaching a new section. Polypropylene pipes can be foil-coated. The last option is for hot water.

Where to start work

If the replacement of the riser is planned to be carried out in a multi-storey building, then work must begin with obtaining permission to dismantle the water supply. It can be taken from the housing maintenance service. Residents of the entrance should be warned that the risers are to be replaced. It is important to report the date and time the water supply is turned off.

Events are held on weekdays. The disconnection is carried out by a plumber, who is sent by the housing maintenance service at the agreed time. Do-it-yourself replacement of water supply risers in an apartment is best timed to coincide with the corresponding work throughout the entrance. This will reduce labor costs and reduce the cost of work. If it doesn’t work out with the neighbors, then you will have to install steel pipes, which does not suit everyone, or mount adapters from metal to plastic by installing polypropylene.

Work order

Before you start replacing the water supply riser in the apartment, you need to draw up a diagram of the location of the new water supply. At the next stage, the water supply is turned off, the old pipes are dismantled, and then a new riser is assembled and installed. The water supply is connected to the general system, only after that you can proceed with the installation of accessories such as filters and taps.

Turning off the water supply is carried out by a utility service specialist. All plumbing is disconnected, and old communications are cut off from the riser and removed from the ceiling. Using a pipe cutter, it is necessary to cut the pipes in order to obtain segments of the desired length in accordance with the drawn up scheme. When cutting, it is important to consider the depth of the fitting. To the final value you need to add 1.5 cm at the ends. This suggests that the estimated length of the workpiece should be 3 cm longer.

Replacing a water supply riser in an apartment may involve the installation of polypropylene pipes, which are connected with a special soldering iron. To begin with, the master will have to select and screw a suitable nozzle to the device. It is heated up to 250°C. The end of the pipe and the fitting are heated with a nozzle. The heat exposure should continue for 10 seconds.

The pipe is connected to the fitting, after which it remains to wait for cooling. After that, you can connect the riser to the water supply system and check for leaks at the junctions. to the wall is carried out with clips, while a corner is used for mounting the mixer.

Work instructions

The instruction for replacing the water supply riser in the apartment provides for the need to install shutoff valves at the entrance to the system. It's practical and convenient. If the design has a tap, it can be cut off to prevent water leakage. The new crane is installed closer to the riser. Replacement work must begin with an inspection of the pipe at the neighbors, where the joint will have to be made.

If the connection is planned to be made with a plastic pipe, then this should not cause difficulties. It is necessary to use a polypropylene solder sleeve for this. When it is necessary to make a joint with a steel pipe, it is necessary to cut a thread on it in order to attach an adapter. The structure is inspected for strength.

If the pipe is old or damaged, then it is better to use the services of a specialist who will weld the threads, otherwise you may experience cracks on the surface from the load. Experts recommend cutting or welding about 6 turns. You can also consider the option of connecting with a collet coupling.

Joint sealing

When a major overhaul is carried out to replace the water supply risers in the apartment, the work may involve the transition from metal to plastic. For this, an adapter with an internal thread is used. To seal the connection, you need to use flax or fum-tape. The coupling is screwed onto a steel pipe. Using a soldering iron, the plastic section is connected to the pipe and joined using an adapter. As soon as you overcome the overlap, you need to solder the tee, from which the wiring will go to the apartment.

Replacement of risers according to the law

If you are interested in the law on the replacement of water supply risers in an apartment, then you should know that, according to Article 161 of the Housing Code of the Russian Federation, all work is carried out by the management company, to which the residential building is assigned. But if the issue of replacing the plumbing inside the apartment is being decided, then the owner of the home will bear all the costs. This aspect is extremely important in controversial issues such as flooding neighbors.

If the eyeliner is out of order, then the owner is to blame, while if the flood was caused by the destruction of the riser, then the management company will deal with the troubleshooting. Replacing the water supply risers in the apartment by the management company should not be carried out. However, if its specialists refuse to change the risers of the house, referring to insufficient funds, then the issue must be resolved by filing a complaint with the housing inspectorate.

The cost of work in Saratov

If you do not plan to deal with the replacement of risers yourself, then you can use the services of specialists. With the use of polypropylene pipes, the diameter of which varies from ½ to 1¼, the work will cost from 2500 rubles. If you have just moved into a new apartment, and steel risers are installed there, then after two years of their operation there is a risk of their overgrowing. Experts advise to replace the water supply risers in the apartment; in Saratov, specialists offer their services at an affordable cost.

Finally

Such work may be necessary even if the apartment has a weak water pressure. As the flow rate decreases over time, you may notice that a thin trickle has begun to flow from the tap at all. This pressure will not be enough to start the washing machine. In this case, a decision should be made to replace the pipes.

As you know, the ZhEK is responsible for the external sections of the water supply pipes. However, the residents themselves should deal with the internal sections of the structures (that is, those located near the apartment).

When are pipes replaced? Sometimes this work is necessary for aesthetic purposes: to improve the type of wiring, to bring the structure to the desired finish in the apartment. In addition, pipes become unusable over time, begin to flow, which makes their replacement simply necessary. For example, the service life of metal structures is 30-40 years. In some cases, it is necessary to replace the structures in the apartment prematurely. The reason for this may be incorrect installation or adverse operating conditions.

In order to avoid problems, it is recommended to carry out preventive replacement of structures in a timely manner. Signals for this are a strong drop in pressure, which can be caused by plugs from stratified sludge, as well as the presence of through holes that appear due to corrosion.

System Replacement Instructions

Pipes from what material to choose to replace the plumbing in the apartment? Reinforced polypropylene is almost ideal. It is easy to assemble structures from this material with your own hands, the connections are strong and of high quality. They are affordable in terms of cost, are light in weight, and can withstand high pressure in the plumbing system.

Consider how to properly replace the water supply pipe in the apartment. First you need to dismantle the old system:

• Old risers are disconnected and removed;
• Dismantled old designs. This can be done with the help of an impeller, cutting the structure, starting with the valves;
• Valves are carefully removed. If they are old, it is recommended to first unscrew the lamb head. So you get rid of the need to make a recess in the wall. When unscrewing the head, the valve should be pressed with a gas key.

After dismantling the old pipes, you can start cleaning the system. The design, up to the valve, is often clogged with sand and small debris, which can later turn into growths that are difficult to remove. For this reason, it is essential to carry out a cleaning before installing a new system. You can do this with your own hands, using a steel string or a screwdriver (depending on the design).

If you have chosen a string, a handle should be attached to its end for ease of operation. At the second end you need to fix a small hook. For cleaning, the string is inserted into the pipe and pushed forward. In this case, you should scroll it.

Following this, the water valves are replaced. Which valve to choose? Ideally, it should be spherical in order to turn off the water with one turn of the handle. The valve should be fixed on the old thread. In this case, a winding of special linen, treated with paint, is used. Before doing this, do not forget to put newspaper under the water supply system so as not to splatter the floor with paint.

Then the filter is mounted. In this case, the settling barrel should be located at the bottom so that all sand and debris flow into it. An adapter fitting is installed. The latter should provide a transition from a threaded connection to a polypropylene structure.

Pipe Installation Instructions

First you need to purchase a nozzle for a soldering tool. It must correspond to the dimensions of the installed structure. The outer chamfer is removed from the pipe. The reinforced structure with foil is cleaned. One end of the nozzle is attached to the fitting, the other - to the structure itself.

The polyethylene should melt. The design is placed in the fitting. In a few seconds, they will be securely fastened. You can see how the work is done in the photo. The last step will be to check the system for operability. To do this, partially open the valves and check for leaks in the structure.

Before you start working with your own hands with water supply pipes, we recommend that you view related materials: photos, videos.

Sooner or later, any, even the highest quality water supply system requires repair. There can be many reasons, and one of them is the need to replace part of the pipeline. How to change the water pipes in the apartment, and will be discussed in this article.

Reasons for replacing plumbing pipes

Replacing the water pipes in the apartment may be required for the following reasons:

1. Complete loss of bandwidth. Metal pipes that do not have corrosion protection are gradually overgrown with various impurities in the water. As a rule, after a few years, the throughput of the pipe drops several times. Of course, it always remains possible to disassemble and clean the pipeline if you know how to clean the cold water pipe in the apartment, but in this case, this operation will have to be repeated soon. It is also worth considering the fact that thin-walled pipes were often used to equip the water supply system, which simply crumble after the expiration of their service life.
2. Loss of tightness of the pipeline. Seamless pipes rarely leak, but welded products sin this, and the leak occurs in several places at once. In this case, there are also half measures - the pipe can be welded, but after each welding, the quality of the pipeline decreases.
3. Loss of visual qualities. Steel plumbing pipes that have been in service for more than a decade usually look very unattractive - numerous paint streaks, chips, scratches and rust. It would be possible to hide them in a box, but then it will not be possible to notice the problem that has arisen immediately, and it will be much more difficult to solve it. If it is vital to hide communications, then it would be best to make a simple collapsible box, which will greatly simplify further actions. Sometimes also people cannot understand why water pipes are buzzing, and they want to replace them.

The best solution to solve all these problems is the complete replacement of water pipes.

Material selection

On the building materials market, you can find a lot of options for water pipes:

• Steel pipes;
• Galvanized steel pipes;
• metal-plastic pipes;
• Polypropylene pipes.

Each option has special characteristics that you need to consider before changing the pipes in the apartment:

1. Steel pipes. The material is familiar, but outdated - in most characteristics, steel products are inferior to relatively young counterparts. That is why you should not stop your choice on such pipes.
2. Galvanized steel pipes. Pipes with a zinc coating are head and shoulders above ordinary steel products in terms of parameters. The main difference lies in corrosion resistance, so the water supply system assembled from galvanized pipes will not overgrow and rust. The main disadvantage is the complexity of installation and threading, if there is none. In order to make a thread, you will have to purchase special tools, which, coupled with the high cost of the pipes themselves, will greatly increase the cost of repairs.
3. Metal-plastic pipes. Pipes made of metal-plastic are distinguished by good visual qualities and good performance. The biggest problem associated with the use of such pipes is the weakness of the fittings, which begin to leak after only a few temperature cycles. To monitor the performance of metal-plastic pipes, fittings must be installed in an accessible place and not closed in order to get quick access if necessary.
4. Polypropylene pipes. Plastic pipes have a lot of advantages that are realized in water supply systems. Perhaps the only serious drawback of polypropylene pipes is non-separable connections. Pipes are attached to each other using a special soldering iron. It is inexpensive, and the pipes are cheap, so if necessary, you can simply cut out the damaged area and install a new one.

The best repair option is to replace metal pipes with plastic ones (more details: ""). They can work at different temperature conditions, have a perfectly smooth inner surface, to which deposits do not stick, and are completely resistant to corrosion.

The mechanical strength, although inferior to steel pipes, is still quite high and allows the pipes to be operated under normal living conditions. Leakage of plastic pipes is impossible, and in case of serious damage, the pipe in the old water pipe is cut out and replaced with a new one.

The general cheapness of polypropylene pipes is also emphasized by the low cost of fittings compatible with them - their range is unusually wide, and it is very easy to find the right parts. Installation is also simple - replacing pipes in an apartment with your own hands is quite possible if you use plastic products.

Installation of water shut-off valves

The water supply installed in the old house is a structure that fails completely and completely. In addition to pipes, valves also have their own tensile strength, which lose the ability to normally retain water in the system, and at some point simply stop working, so they also need to be changed.

To replace the valves in an apartment in a multi-storey building, the first step is to shut off the risers of hot and cold water supply. To do this, you need to submit an official request to call a plumber - this will guarantee that during the work, none of the residents of the house will arbitrarily start water.

The benefit of calling a plumber is also that when repairing an old riser, a thread can break off, which will have to be welded. This requires a welder and special equipment - and a formal request will help solve this problem.

In any case, when the valves are installed, further replacement of the water pipes in the apartment is carried out with their own hands.

Installing filters

Regardless of the type of mixers used, water filters should still be installed behind the valves. The fact is that various small impurities present in the water can very quickly render any faucet unusable, not to mention the numerous minor blockages that will have to be regularly disposed of.

Conventional coarse cleaning devices are best suited as filters. There is no point in expensive multi-level systems that can be offered in a store - a regular stainless steel mesh and a small sump to collect slag will be enough.

Pipe connection

The valve filter and the first polypropylene fitting are attached with a threaded connection. Often, threading is also used for mounting most mixers. So that the installed threaded connection does not leak in the future, during installation you need to take a little linen winding, smear it with drying oil or paint, and then screw it onto the thread. It is worth generously smearing the winding - all the excess will squeeze out on its own, so there will be no problems during operation.

The installation of polypropylene pipes is not particularly difficult. First, the correct nozzle is selected, the fitting with the pipe on it is heated, after which the molten parts are tightly compressed and held in this state until solidification. To fix the pipes on the walls, special fasteners are used.

Conclusion

Replacing water pipes is quite simple. Proper selection of materials and competent performance of work are the main components of a quality repair of the pipeline of the water supply system.

In contact with

Classmates

Those who decide to make repairs in a new building apartment will not have to change communications, because the pipes in new houses are made of polymer materials that meet all modern requirements. But if you live in an old building, then replacing plumbing communications in the apartment is a must. After many years of use, they have reached a high degree of wear, and the appearance leaves much to be desired. If you prepare well, then you can replace the pipes in the apartment yourself.

How to replace plumbing pipes in an apartment

Modern communications and components are of high quality and durability. However, sometimes there is a need to replace the water pipes in the apartment. This may be for the following reasons:

the pipe is clogged with rust and mineral deposits (typical for old pipes, the inner side of which is not treated with an anti-corrosion coating);

if you wish, change communications in the bathroom or toilet from open to hidden;

due to rupture or leakage caused by pipe wear or installation errors;

when redeveloping the bathroom, during which it was necessary to change the wiring of communications.

Before you start replacing pipes in an apartment, you need to assess the amount of work to be done and outline a plan for their implementation. It should contain the following items:

piping scheme;

replacement materials;

the necessary tool for replacing pipes;

dismantling of old communications;

installation of new pipes according to the drawn up scheme.

After assessing the scope and nature of the upcoming work, it is necessary to draw up a plan for the planned wiring. It may not differ from the existing one, or it may be completely different.

galvanized and metal;

cast iron;

• metal-plastic;

  plastic.

Types of piping

Pipe routing can be of several types. Let's briefly describe each of them.

Serial (also called "tee") wiring. This is the simplest type. Two pipes (with hot and cold water) are diverted from the riser, and from them, using tees, water is supplied to where you need. This scheme will not require any large financial costs or special physical efforts from you. In addition, the consistent piping in the apartment is easily dismantled and has good maintainability.

Collector wiring. Such a scheme involves a pipe connection to each consuming device. Collector wiring will require more labor costs (which means that the cost of installation will also increase), but in general this scheme is more reliable and more durable than a tee. In addition, with it, each pipe has its own shut-off valve, which will allow, if necessary, to shut off the desired one, leaving the rest open.

Open type. With such a wiring, communications are laid along the walls of the apartment using various connecting elements - brackets, clamps, etc. The disadvantages of this type include low aesthetics - all pipes are in sight. But the convenience of replacing pipeline elements increases many times over, and any damage can be detected and eliminated very quickly without the risk of flooding neighbors.

Hidden type of wiring. This scheme is becoming more and more popular. With a hidden type of piping in an apartment, communications are removed into special recesses that are made in the floor screed. This option has a very high aesthetics, but the repair or maintenance of such a network will not be easy. In addition, it is possible that after repairing pipes with this type of wiring, repairs will be required for the entire room.

When is it necessary to replace the pipes in the apartment and at whose expense it is carried out

A leaking pipe in an apartment is a big nuisance and, unfortunately, a common event. In the zone of greatest risk are the apartments of the old housing stock, where communications have not changed for decades. However, it is not necessary to wait for an emergency to replace pipes. You can make repairs in your apartment and lay modern pipes instead of outdated ones.

When there is a need to replace pipes, the first question that comes to mind is where to go? Should the management company do this? What is the cost of replacing pipes in an apartment? Is it possible to contact a third party to carry out this work?

Replacement of pipes in the apartment. How to act.

According to the rules for the maintenance of common property, the management company is responsible for the segment of communications to the first tap from the riser. After the tap, the pipe belongs to the owner of the apartment, and only he is responsible for its performance and safety. Therefore, the elimination of a breakdown or replacement of this section falls on the shoulders of the owner of the home. Another thing is when repair or replacement of risers is required. Since these pipes are the responsibility of the Housing Office, in case of leakage or malfunction, it is there that you should contact them for replacement.

However, as practice shows, public utilities are usually reluctant to contact apartment owners on this issue and do not always respond promptly to a call for plumbing work. Quite often there are reasons why they do not want to replace the risers themselves. To avoid such a situation, you need to contact the management company not verbally, but with the help of a written application, a copy of which should be kept with you. On this statement, the Housing Office should put a resolution. In it, you should indicate the reason for replacing the pipes.

In the event of a negative answer to repair or replacement, it is necessary to insist on an inspection of the communications, after which an act on the technical condition of the pipes must be drawn up. If a refusal follows after that, you should again take a written response from the Housing Office with the rationale for the refusal. This document will be very useful if the riser breaks and you suffer property damage. In this case, the management company must be sued and demanded to compensate for the losses incurred.

There is another option, how to replace the public pipe. You can do it yourself, by attracting a specialized organization. However, this does not cancel the appeal to the housing office according to the above scheme. In the event that the hired company performs the replacement or repair of pipes in your apartment in an improper way, the document will be able to help in solving the problems that have arisen.

You also need to remember that if it is the management company that replaces the pipes in the apartment and determines the cost of the work, then the service is paid by the owner of the premises.

It cannot be said that any refusal of the management company to replace the risers will be illegal. A motivated refusal is quite possible, for example, if the owner of the apartment moved the pipes in the bathroom during the repair, in order to implement the planned new design of the premises. In this case, the transfer or replacement of communications is not the concern of the management company.

If leaky places and traces of rust are visible on the riser, then this is a serious reason for contacting the housing office. True, specialists can carry out not the replacement of pipes, but their “repair” by installing a clamp on the problem area. Sometimes, there can be 5-6 such clamps on the pipe.

How to write an application for pipe replacement.

This application is made in free form. In it, you describe the situation and demand the intervention of the management company to replace or repair pipes in the apartment.

It is also worth noting that the owner of the premises submitting the application does not have debts for utility bills, does not allow delays in payments, and therefore can count on the provision of quality services. An application is written in the name of the head of the management company. If there are any difficulties with the preparation of the document, then there are samples in any housing office, you can check with them.

Replacement of pipes in a privatized apartment and a municipal one. Who cares?

Not everyone living in an apartment can be its owners. The owner of the premises pays for the work in the privatized premises. When concluding a contract with a contractor, you need to check that he has permission for repairs of this type. The document should also contain a clause about the company's responsibility for its work. If the contract is concluded with a management company that maintains the house constantly, then it must provide all the necessary guarantees.

If a person lives in a municipal apartment, then you need to look at the terms of the contract of employment. It is possible that the tenant himself must carry out the necessary work to replace or repair pipes in the apartment. In this case, you need to look for an organization that will replace the pipes, and pay her. If the contract says that the repair of communications should be carried out by the municipality, then it is necessary to write an application to the appropriate department under the administration of the city or district.

What material to choose so that the replacement of pipes in the apartment is successful

The most common today are pipes for cold and hot water made of metal-plastic, polypropylene, copper and galvanized steel. Let's take a closer look at the pros and cons of each material.

Metal-plastic pipes

Pipes made of metal-plastic have the form of a structure in which there are four layers - cross-linked polyethylene, an aluminum layer, the thickness of which is 0.4 mm (performs a reinforcing function), a layer of glue and wear-resistant plastic on the outside.

These communications are universal. Based on the name, such a pipe combines a layer of both plastic and metal. Thus, the outer layer does not corrode and has a long service life. The inner layer makes the pipe reliable, while being ductile and durable. The developers of metal-plastic communications managed to eliminate the problem characteristic of plastic - instability to high pressure and temperatures.

resistance to corrosion;

ease of installation;

the outer layer of the pipe does not conduct current;

many different fittings.

The disadvantages of such pipes are:

the need for constant tightening.

Polypropylene pipes

If you are replacing pipes in an apartment with polypropylene pipes, the repair price will definitely please you. The cost of such communications today is the most optimal in terms of price and quality. You will also get high performance pipes from this material. This type of communication can be called the most utilitarian and practical.

Unlike pipes made of PVC or polyethylene, polypropylene pipes are not so susceptible to temperature changes, especially low ones. Polypropylene can also cope with hot water, but thresholds must not be exceeded.

How to replace pipes in an apartment with your own hands

Replacing pipes in an apartment is an expensive undertaking. To finally understand this, it is enough to call a couple of companies that provide such services. Thus, if you have at least minimal installation skills, you can replace the pipes in the apartment yourself. At the same time, it will be possible to save a significant share of the funds in the budget, even taking into account the purchase of some tools.

At first glance, it is not so difficult to replace pipes in an apartment - I removed the old ones and installed new polymer ones. However, this work only seems simple, in fact there are many nuances that should be taken into account in order to avoid trouble.

Replacement of water pipes in the apartment

Old water pipes made in the 1960s and 1970s were made of "black" steel. Obviously, such communications in a modern apartment do not hold water. Many owners replace them with new ones made of plastic.

As a rule, they replace the water pipes in the apartment according to the scheme below.

At first, a new wiring of a plastic pipeline is planned. Replacing pipes is a good reason to fix the wiring for the better. Usually they change the old tee to a more modern manifold.

Having planned the wiring and drawing the location of new home plumbing lines with chalk along the walls, you can move on to acquiring all the necessary details. It is better to calculate the footage of pipes in an apartment in kind, which, moreover, practically eliminates an error with the number of fittings. If it is planned to replace it with plastic communications or metal-plastic ones, then this assumes that they will be mounted by welding or fittings, respectively. It is difficult to give a clear preference to any option, but it is worth noting that the installation of metal-plastic pipes is simpler and faster compared to polypropylene products. However, the latter win in reliability.

Having purchased pipes and fittings for replacement, you can begin to dismantle the old pipeline. To do this, shut off the water in the apartment on the risers of cold and hot water supply. Then disassemble the threaded coupling on the domestic conduit, which connects it to the valve on the riser. When all this is done, you can not stand on ceremony with old pipes - they are cut off by a grinder and taken out of the apartment.

Having removed old pipes from the apartment, you can take up the installation of new conduits. Polypropylene and metal-plastic pipes are mounted from the tap to the collector comb (if a sequential system is selected, then to the tee).

The joints of the polypropylene conduit are connected by welding using the same couplings. The pipe and coupling are mounted on a soldering iron, heated and pressed into each other. Metal-plastic is assembled faster: a lock nut is twisted from the fitting, a pipe is inserted into it and put on the fitting fitting. After that, the locknut is screwed onto the end of the fitting, thereby pressing the joint.

After all of the above, it remains only to connect the pipes to the fittings of the hot and cold water risers.

Replacement of sewer pipes in the apartment

Replacing sewer pipes in an apartment will differ somewhat, primarily in more complex calculations and dismantling. In this case, the assembly of a new pipeline is usually faster than in the case of communications for cold and hot water. This is possible due to the fact that the sewer pipes are joined through a socket connection with a sealing ring. Therefore, there is nothing difficult in replacing these communications in an apartment with your own hands, you just have to get ready for a dirtier job than in the case of plumbing or heating systems.

Direct replacement of sewer communications in the apartment takes place in three stages.

At the very beginning, you need to update the siphons under the sinks. After that, the slope of the sewer pipes that connect the siphon and the riser is calculated. Slope - the difference between the entrance to the pipe and the exit from it, and the entrance is located under the siphon, and the exit is in the tee on the fan riser. The height difference is directly related to the length of the pipe. Typically, the slope of a pipe with a diameter of 50 mm is 2-3 cm per linear meter. After calculating the slope, it is necessary to project all dimensions onto the supporting surface of the future sewer pipeline, drawing the location of the branch on the wall. Having done all this, you can remove the old sewer pipes.

The dismantling of the old system begins with the blocking of the fan riser. This happens by introducing a pneumatic plug into the collapsible end of the revision of the riser, which will block the drains from the neighbors. Next, you need to very carefully mint the central tee, which collects all the sewer pipes in the apartment. Then the old pipes are dismantled. To disassemble them, no special actions are needed, cast-iron pipes are broken with a hammer, and their remains are taken out of the apartment.

After dismantling comes the assembly stage. First, a PVC pipe is mounted from the toilet drain to the cast-iron tee with a diameter of 100 mm. After that, drain pipes of taps and bathtubs with a diameter of 50 mm are inserted into the tee. Installation is simple: the smooth end of the pipe is inserted into the socket, directed in the opposite direction from the direction of the wastewater discharge.

After completing these steps, the cork is removed from the revision, and the riser is sealed (just tighten the cover). The replacement of sewer pipes in the apartment is completed and they are ready for work again.

Replacement of heating pipes in the apartment

Replacing these pipes will be the fastest. Since you cannot replace the supply and return risers (this is a communal property), all work consists only in replacing the batteries and those pipe sections that lead from the radiators to the riser.

It is necessary to replace communications not during the heating season. When heating is started in the apartments, you will not be allowed to interfere with the operation of the system.

Replacement of heating communications is carried out as follows:

making sure that there is no water in the riser, you need to cut off the horizontal wiring pipe, leaving a small area at the riser;

a thread is cut into this section (with a die and a screw), onto which a ball valve is screwed. The same actions are performed on the second riser, after which there is no urgent work left, since the interests of the rest of the residents of the house are no longer affected;

having installed new batteries, you can begin to breed pipes. The supply pipe is installed first, which is connected by bends to the upper fittings of the radiators. After the supply pipe, a discharge pipe is placed, which is also connected by bends to the lower fittings of the batteries. Pipes are connected by welding, since polypropylene products are used for heating that can withstand a coolant temperature of 95 degrees;

the last step is to connect the supply and discharge pipes to the valves on the riser.

Replacement of pipes in the apartment

The fan pipe serves to prevent unpleasant odors from entering the apartment. It connects the sewer riser to the street. Usually these pipes are placed vertically, but there may be another shape, for example, an angular one.

It is quite possible to carry out the replacement of the fan pipe in the apartment on your own. Materials and tools for this work are similar to those that were needed to replace sewer communications. There are a number of rules to keep in mind.

The diameter of the riser and the fan pipe must match.

The end of the vent pipe should lead to the roof or where the unpleasant odor will quickly dissipate.

The fan pipe must go through warm rooms, and its end must go outside. This is necessary for the formation of traction, which appears due to temperature differences.

Usually, each riser has its own fan pipe. Since in standard-plan apartments, as a rule, there are no more than two risers, this condition should not create unnecessary problems. It is not necessary to replace the fan pipe with a vacuum valve.

So, the replacement of pipes in the apartment may well be carried out on its own. All that is required of you is accuracy and consideration of certain nuances. If no mistakes were made when replacing pipes in the apartment, then the new communications system will last for decades without breakdowns.

How much does it cost to replace pipes in an apartment

If self-replacement of pipes in the apartment is not included in your plans, you can always turn to specialists. At the same time, the determining factor in choosing a company will be the cost of their services. When replacing pipes in an apartment, the price depends on the following factors:

type of communications;

the amount of materials (depending on the size of the apartment or house and the method of wiring);

hidden or open type of pipe laying;

the presence or absence of additional equipment.

In the table below we will give the approximate cost of services for replacing pipes in an apartment.

PRICE LIST FOR INSTALLATION OF WATER SUPPLY PIPES
Installation of a cold water and hot water draw-off point Polypropylene
Installation of a draw-off point for cold water and hot water Rehau
Installation of cold water and hot water draw-off point Copper
Installation of a cold water point only (under the toilet bowl, old car, etc.)
Installation of manifolds (set)
Ball valve installation up to 3/4"
Installing the pressure reducer
Installing a fine filter

Before proceeding with the dismantling of old systems and the installation of new ones, you need to purchase all the necessary materials for these works: pipes, fittings, flexible pipes, manifolds, seals and much more. And it would be better to do it with a trusted supplier.

Working with SantekhStandard you get the following benefits:

quality products at reasonable prices;

constant availability of products in stock in any quantities;

conveniently located warehouse complexes in St. Petersburg, Moscow, Novosibirsk and Samara;

free delivery in St. Petersburg, Moscow, Novosibirsk, Samara, including to transport companies;

delivery of goods to the regions through any transport companies;

individual approach and flexible work with each client;

discounts and various promotions for regular customers;

certified and insured products;

trademarks registered in Russia, which is an additional protection against low-quality fakes.

Specialists of the SantekhStandard company are ready to help both individuals and companies choose pipes. All you need to do is call: