Do-it-yourself sewerage installation in an apartment or private house

Installation of sewage in an apartment, a private house (in the country) is a very important and responsible work. Installation of internal sewage is carried out during the repair of the old system, in order to replacements or in a new house at the stage of its construction. Properly made sewage system both in an apartment and in a private house (in the country) will provide a comfortable and cozy stay, save from frequent cleaning of the system and its blockages.

Even an inexperienced master can make a sewer with his own hands

Planning and preparation of work

The sewer system, which is located in a private or apartment building, is pressureless and is designed to divert waste water to a common riser. This is achieved by performing a certain pipe slope. The quality of installation of sewer pipes in a private or apartment building depends on the effectiveness of work planning, which involves:

• selection of a place for plumbing fixtures;
• preparation or inspection of an existing sewage system;
• determination of the quantity and types of materials;
• purchase of necessary parts;
• test assembly and sewerage test;
• dismantling the old one or preparing for the installation of a new system;
• installation of sewer pipes, installation of equipment, sealing of the system;
• connecting and checking plumbing.

Before you start installing sewer pipes with your own hands, you should make sure that they are clean, that there is a chamfer at the end of the pipe and a sealing collar in it, and no burrs.

Important! The appearance of temperature fluctuations in the sewer system can deform the seal, so before installing the cuff, it must be treated with silicone grease.

Even small inaccuracies in planning do-it-yourself installation of sewer pipes can lead to big problems in the operation of the finished system.

First you need to mark the location of pipes and plumbing fixtures

Tools and materials necessary for work

For sewage, materials such as polypropylene and polyvinyl chloride (PVC) are most often used. Installation of a cast-iron sewer pipe in a private house (at the dacha) or apartment is quite rare. There are special adapters for connecting different materials. The advantages of plastic pipes are a very smooth inner surface, corrosion resistance, and durability. The most important feature for installing sewage in an apartment with your own hands is their low weight. Among the shortcomings can be noted poor sound insulation.

Pipes are required in two diameters: 5-7 cm and 10-15 cm. They are connected by fittings with rubber bands having different configurations - elbows, tees, bends, etc. An inspection hatch should be provided on the riser. When installing sewer pipes with your own hands, you will need the following tools:

• chisel and hammers;
• roulette and level;
• grinder and saw;
• pencil (marker).

All necessary connections are adjusted and checked before assembling the pipes.The sewer system can cause leakage if its edges are poorly treated. The pipe of the required size is cut strictly at right angles, without distortions.

Sewer pipes must be equipped with a sealing rubber

Burrs are removed with sandpaper or a file, which will prevent clogging. The sealing gum must also be cleaned of dirt and dust.

Features of pipe fastening

During the assembly of sewer pipes with your own hands, you should leave a gap of 1 cm, which compensates for the change in their length due to thermal expansion. To do this, the shaped part or pipe is pushed fully into the socket of another part, a mark is placed on it, and then the pipe extends 1 cm.

When installing sewage in an apartment, private house or in the country pipe mount produced by clamps. They should be placed near the socket, which will prevent slipping during installation.

Important! If there is a vertical installation of the sewer pipe, then fixing to the wall is carried out every 1-2 m, if horizontal - through segments equal to approximately 10 pipe diameters.

Do-it-yourself piping in a private or apartment building should not allow the appearance of internal stress. This is achieved by using rigid and floating mounts. Rigid fastening fixes the pipe in all directions, it is often metal clamps on bolts with a rubber seal. Installation on floating mounts makes it possible to move the pipe, while the sealing element is not used.

It is better to fix sewer pipes motionless with clamps

Installation of external sewage in the country

The external sewage system includes a pipeline, inspection wells and treatment facilities. Installation of sewer pipes in a private house begins with the organization of a place for sewage treatment plants and trenches for water supply. The trench is deepened by about 5 cm relative to the design in order to make a sand pillow under the pipes. They must be wide, sometimes reinforcing the edges with concreting is required.

Today, there are ready-made models of plants for the collection and subsequent treatment of wastewater - septic tanks. In order to save money, when installing do-it-yourself sewer pipes in the country, you can assemble them yourself. To do this, you will need:

• brick;
• well rings made of reinforced concrete;
• plastic containers.

Performing the installation of external sewage in the country, it is better to use mini-septic tanks. They are easy to install and are designed to handle small volumes of effluents. It is permissible to install in a private house plastic sewer pipescast iron as well as asbestos-cement. However, the latter option is rarely used. The pig-iron pipeline will be stronger and will last longer than the polymer one. It turns out to be socketless, since the installation of cast-iron sewage is carried out using special fittings.

To equip the sewerage in the country, you need to dig trenches for pipes

DIY assembly of the pipeline begins with the bottom pipe, while controlling the angle of inclination. She is covered with sand, ramming on the sides, and then with soil. In some cases, the pipes are pre-insulated.

Rules for installing internal sewage

One of the most important elements of the sewage system in the apartment is a riser. To it, under some bias, pipes from plumbing fixtures converge. It is not recommended to dismantle and change the riser from cast iron unnecessarily, since such a material is durable and has good soundproofing properties. In addition, to carry out such work with your own hands is difficult.

The angle of inclination of the pipes depends on their diameter.

Table 1

If you properly observe the bias, then this will prevent the appearance of blockages. For wiring it is better to use pipes with a diameter of 40-50 mm. The cross section of the riser receiving large volumes of waste should be 100-110 mm. During operation, the sewer system in the house is subject to dynamics. Therefore, the end of the pipe is not fully inserted into the socket to compensate for its elongation with increasing temperature.

Helpful advice! Grease traps are recommended on pipes that drain water from dishwashers and kitchen sinks.

The toilet should be located at the lowest point of the sewer system in the house. Properly made sewage in the country, as in the apartment, must have water locks after plumbing fixtures.

Dismantling the old sewage system

Before you install a plastic pipe with your own hands, you need to decide how to dismantle the cast iron. Sewer riser can be removed only after turning off the water supply. It is cut by a grinder in two places. In this case, you must take care of your own safety and put on glasses. The cuts are about half the cross section of the pipe, and the distance between them is about 12-15 cm. Wedges are inserted into them, after which part of the pipe is knocked out with a hammer. First you should check the mounting of the riser from above, otherwise it is necessary to apply insurance.

If the house has old cast-iron or metal pipes, then the replacement of the sewage system must begin with their dismantling

Cast iron is a brittle material, so you need to hit it carefully to prevent fragments from clogging the pipeline. Next, the pipe is cut to the desired length from above. The lower part usually consists of a tee, revision and coupling. The most important part is the bell of the cross or tee - the wiring of the apartment sewerage converges to it and connects. Therefore, the pipe from it must be removed with special care and cleaned from the old sealant.

It is easier to dismantle the sewer layout in a private or apartment building than a riser. The main thing is to disconnect the pipes from the tee and free them from concrete.

DIY installation steps for sewer pipes

You can install the sewage system both in a private house (in the country house) and in the apartment yourself, following certain rules. The sequence of steps for mounting the riser is as follows:

1. A rubber seal is inserted into the pipe bell, which is lubricated with sealant.
2. A tee is installed (if it was removed during dismantling).
3. The axis of the riser is marked on the wall.
4. A pipeline is being assembled to check and locate fasteners.
5. Mounts on the brackets.
6. The riser is assembled using gaskets, it is inserted into the socket at the bottom, and connected to the cast-iron pipe cuff at the top.
7. The pipe clamps are fixed to the wall.

The pipe clamps must be rubber-laid and fit exactly to the diameter of the pipe. This will reduce the noise level that is characteristic of PVC sewer pipe.

The main condition for laying sewer pipes is the observance of the necessary slope

Installation of sewer wiring in a private house (in the country) is also carried out in stages. First, the pipe axis with the required slope is applied to the wall. Next, you can do-it-yourself to assemble a trial version of the pipeline.

Note! It is important that the sockets are facing the flow of water.

The rules require assembly of the pipeline from the tee to the plumbing fixtures. It is fixed to the walls by means of clamps located at a distance of about 50 cm from each other. A corrugated pipe can be used to connect the toilet. At the final stage, other plumbing is installed, the system is checked for leaks and strength.

It is better to entrust the external sewerage device to professionals, but you can do it yourself.The effectiveness of the system depends on the clarity of the rules for installing sewer pipes.