Replacement sewer riser in the apartment with their own hands: instruction

Need to replace the riser inThe apartment arises as the pipes wear out. It is easier to implement in your home, because it is not required for neighbors to take their consent. When replacing the riser, it is necessary to keep the vent pipe that opens onto the roof. If this condition is violated, the water seals in the house will not work properly, which will cause an unpleasant smell of sewerage.

Determining the need to replace the riser

If there are cracks and fistulas in the riser orlowering of the horizontal pipeline, it must be replaced. A new riser requires the presence of tees so that internal wiring can be carried out. Pipes located horizontally in the screed, and tee can drop down to the overlap and pipes, which can be up to 10 cm.

Replacement of the riser in the apartment -the duty of housing, but if you live on the top floor or in your home, you can try to perform this operation yourself, but you must strictly follow the instructions.

Sewer pipe installation

In order to replace the riser,it is necessary to imagine his device. The internal sewage system is arranged quite simply. The arrangement of the riser in the apartment has the following features. The pipe in the place of reception of sewage is placed on a level higher in comparison with the place of their drainage. The slope along the length of the laid pipe should be uniform. The lower point of the drain pipe is inserted into the common riser near the interfloor. The height of the placement of the beginning of the pipe is calculated taking this point into account. For pipes it is necessary to provide a slope of 2% with a diameter of 80-100 cm and 3% with a diameter of 40-50 cm. Exceeding this bias will lead to the fact that only clean water will flow through the pipes, and impurities will accumulate in them. With a lower level of slope, fats with water will fall into the riser.

The structure of the riser should include a venta device that must be present both in the apartment and in the house. It helps eliminate unpleasant odors, as well as compensate for pressure inside the riser. The ventilation is made either by a fan riser, which is led out to the roof, or by a vent valve that forms unventilated sewer risers. The latter is installed in the part of the riser located above the connected devices and plumbing products. It is better to replace the cast-iron riser with the appropriate specialists. If there is no desire to address them, then follow the instructions below to replace the riser in the apartment.

Tools and materials for replacing the riser pipe

It is necessary to stock up a bulgarian or pipe cutter,chisel and screwdriver to remove the cut material (first remove the larger metal pieces, the second - smaller). You will also need a hammer (for the purpose of loosening the desired section of the pipe), nail dies and scrap (to remove clogged system elements). In addition, it is necessary to acquire a perforator (for removing cement in joints), a cut from polyethylene (to isolate potential holes), a grinding machine (for preparing the surviving parts of pipes to the installation of a mounted riser), gloves and goggles.

Trimming pipes

The first operation when dismantling the old riser -milling pipes. The fact is that the pipes in the joints are attached to each other by sulfur, from which it is necessary to get rid of. To do this, you need to gently beat the hammer with a hammer (whipping with all the force can lead to the replacement of the entire riser, which will pour out a pretty penny for the owner of the apartment or installer). With a visible wobbling of the site, it must continue to loosen in different directions. If the loosening occurs within a short period of time, this indicates, most likely, that the connection was not made using sulfur, but by means of a rope that must be pinched and stretched, without stopping the reels.

In the case of non-receipt of any results withtapping with a hammer it is necessary to take a torch or a blowtorch and to warm up a place of wedging in a circle. Do not forget to wear a gas mask or respirator. When burning, the place of wedging is taped with a hammer. When the socket starts to move, it must be loosened with a wrench, while sipping on itself. At the end of extraction of the bell, the place of its former fastening is cleaned with a mounting, a chisel or a chisel. This will allow the correct insertion of the rubber band, which is treated with silicone, inserted into the socket and a tee or an assembled plastic pipe is fed.

Replacement of pipes during dismantling

Replacement of the riser in the apartment suggestsreplacement of pipes of the old system, which can be carried out by dismantling and installing elements located between the floor and the ceiling, as well as their parts located between the floors. The most common is the first option, because the second requires the consent of neighbors.

Before dismantling, the water in the riser is overlapped withwarning neighbors. At a distance of 80 cm from the tee and 10 cm from the ceiling, the Bulgarian cuts in the horizontal plane along half the diameter of the pipe. In incisions it is better to insert a chisel. They are hit with a hammer, as a result of which the pipe splits, its center is dismantled. The rest of the ceiling is covered with a film and the lower part is dismantled using a nail and scrap to loosen the tee fixing, and also a perforator for crushing cement in the joints. The old tee is dismantled and the pieces of cement are removed with a chisel and a screwdriver. The ends of old pipes are cleaned of impurities and processed by a grinder. The room in which the riser pipe is replaced in the apartment must be actively ventilated.

Preparing for installation of a new riser

For the replacement of the sewer riser in the apartment with your own hands, you need to have the following items available:

• plastic pipes having a diameter of 110 cm;
• bends with tees;
• Gum to prevent leakage in the junction of old and new pipes;
• clamps for fastenings;
• Liquid soap to ensure that the pipe enters the connecting parts;
• level is vertical-horizontal or vertical.

Installation

Installation when replacing the riser in the apartment is carried out in a certain sequence:

• On top of the old pipe, put on the rubber cuff and process the sealant joint place.
• An additional adapter is inserted into the tee.
• To measure the pipe with the compensator insertedIn the tee it is necessary to place it in a position in which it will always be. The cut is cut, retreating up to 5 cm above the bell, making accurate measurements and joining the individual parts into a single whole.
• A new plastic riser is attached to the wall using clamps that will not allow it to move down and break the structure.
• When replacing the tee, the compensator is mounted on it. If two pipes are used for the riser device, the compensator is placed in the place of their fixation.

The joint is always treated with sealant.

Finally

Thus, the replacement of the risersewage in the apartment is not so difficult, but any case requires a certain skill. If you are not sure about your capabilities, it is better to contact a specialist. Before installing a new riser, you need to dismantle the old one, which is perhaps a more labor-intensive operation compared to installing a new system.