Replacing sewer pipes in an apartment: at whose expense, price and video

Repairing the sewer system in an apartment is a difficult and responsible matter, therefore serious reasons are needed for its implementation. This may be the wear of old pipes, accompanied by constant blockages and unpleasant odors in the toilet or bathroom. Replacing the sewage system in an apartment is the only way out if the old communications can no longer cope with the load and at any moment can begin to leak or even burst.

Before starting work, everything must be carefully weighed, considered and soberly assessed. If there is the slightest doubt, it is better to turn to professionals. Mistakes when replacing sewer pipes in an apartment can lead to unpleasant consequences for other residents. No need to explain at whose expense they will be eliminated.

Which pipes to choose?

The best option for repairing the sewer in the apartment with your own hands are plastic pipes. They can be made of polypropylene or polyvinyl chloride. Such communications have a smooth inner surface, making them less prone to blockages. In addition, they are durable, lightweight and easy to install, so with their help not only the drainage from the apartment is successfully organized, but also internal and external autonomous sewage.

In the arrangement of sewage, ceramic and cast-iron pipes are also used. But for an ordinary apartment, the main advantage of ceramic pipes - their resistance to aggressive liquids - is not significant. Such materials are expensive, and therefore rarely used in ordinary residential buildings.

Pipes made of cast iron are highly durable and well resistant to corrosion, but their high weight and difficulty of installation tip the choice in favor of plastic analogues.

Preparatory work

To purchase pipes, it is necessary to draw up a layout of all sewer communications in the apartment. It is not necessary that it conforms to the drawing canons, the main thing is that with its help it is possible to accurately determine the quantity and assortment of the purchased material. Therefore, it is necessary to indicate all the bends, branches and hydraulic locks. Subsequently, using this drawing, the required quantity is calculated and acquired. plastic pipes of various diameters, couplings, nozzles, tees, sealing sleeves and others fittings.

Pipes of polymers are connected by the bell method: one pipe is inserted into the thickened part of the second, and the tightness is achieved using a rubber seal. If necessary, the plastic pipe can easily be shortened to the desired size with a hacksaw. A small chamfer is required at the cut, which is necessary so as not to damage the o-ring.

Sewer pipes in the apartment should be located at a certain distance from the walls, to fix their elements should purchase metal clamps, and to ensure the tightness of the joints, tow and a sealant based on silicone.

Do-it-yourself replacement of sewer pipes in an apartment requires the abandonment of the use of any plumbing fixtures for the duration of the repair. Residents of the upper floors are lucky, they will have to control only themselves. But everyone else will have to agree with the neighbors. There are recommendations to simply turn off the water supply by contacting the Housing Office, but no one will guarantee that someone from the apartment above will not use the toilet, just rinsing it from a bucket of stored water. So it’s better to agree on a good one, although you can hear many funny stories with the most exotic ways of neutralizing intractable or inadequate neighbors. For the same reason, the replacement of pipes in the apartment should be carried out as soon as possible.

In any case, additional insurance does not hurt. Therefore, it is recommended to remove the toilet, and protect the walls and floor with plastic wrap, securing it with ordinary tape. Protective equipment made of rubberized material will not hurt.

Dismantling of pipes of the old sewer in the apartment

Experts advise, without extreme need, not to replace the old cast iron riser in the apartment. If it is impossible to do without it, then dismantling should be carried out extremely carefully.

The biggest nuisance that can happen at this stage is getting garbage into the sewage system, which can lead to blockage. That is why, when deciding who should change pipes in an apartment, many prefer to trust professionals.

• Before starting work, the upper part of the riser is securely fixed. Usually the pipe has its own standard mount, but it is better to add semicircular brackets, coupled to the wall by means of studs embedded in it. A rubber gasket should be placed under these staples, which will protect the cast iron from damage and serve as a kind of damping device. So you can be sure that the upper part of the riser will not collapse on your head in the process.
• After disconnecting all plumbing fixtures at a distance of at least 10 cm from the tee, the old wiring is cut, disassembled and taken out of the apartment.
• In the middle of the riser pipe, the grinder makes two cuts located at an angle to each other. Sawing to the end is not worth it - the disc grinder can clamp.
• Using a hammer, a chisel and wedges, carefully cut out the cut piece.
• The upper piece of pipe is cut off, leaving room for a new riser to dock.
• The lower piece is loosened with a cross and removed from the bell.

Installation of a new riser in the apartment

Form a new sewer system in the apartment begin with the installation of a riser.

• The tee is connected to the bottom of the old pipe, if necessary, if their diameters do not match, use a cuff.
• Cut the necessary pieces of plastic pipe and assemble the future riser for fitting without seals. The pipe must be fully inserted into the compensator.
• The assembled rough construction is put to the docking points and outlines the fasteners. These are 3-4 clamps, with the help of which the pipe is fixed at a certain distance from the wall.
• After the holes for the fasteners are drilled, the new riser is finally assembled with rubber seals, and all joints are reliably sealed.

There are several useful tips that will facilitate the assembly of this part of the sewage system in the apartment and ensure its long functioning:

1. To make the pipes easier to enter each other, a little liquid soap can be applied to their ends.
2. In addition to a hard mount near the sockets, an additional fixation can be used floating connection: in this case do not use a rubber gasket between the pipe and the clamp, and the fasteners tighten not too much.
3. The presence of inspection hatches on the riser will facilitate inspection and cleaning of the pipe in case of blockage.

This process is presented more clearly in the video.

Installation of wiring in the apartment

The assembly of the sewer network in the apartment is carried out according to the compiled scheme. In each apartment, it will have its own characteristics, but there are general rules that must be observed:

• The direction of the sockets must coincide with the direction of movement of the water.
• It is necessary to observe the general bias of the system to the riser.
• You cannot change the shape and size of shaped parts.
• To prevent unpleasant odors from entering the apartment, a trap system is used.
• The toilet is connected using a corrugated pipe at the lowest point of the entire sewer wiring in the apartment.

After completion of the pipe replacement, all joints and joints are checked for leaks first visually, and then when filled with water. You can ask the neighbors from the upper apartment to flush the water. Or fill the bath, and then drain it, while opening all the taps. Identified deficiencies must be addressed. If there are no leaks, then everything worked out for you! The article was provided by our friends topas-site.ru

Sewer replacement cost

Prices for works on replacing sewers in an apartment start at 3,000 rubles and depend on the complexity of decoupling the pipes. It is also worth considering the cost of materials, in different regions different prices. For a more accurate estimate of the cost of work in your particular case, we recommend using our free service for calculating the cost of work in your bathroom or kitchen.

Video instruction