To obtain a successful result of the work performed, it is important to have at least a little experience with the appropriate tool, as well as to observe safety precautions. In principle, this process is somewhat similar to the replacement of the water supply pipe. Before, performing work, you will need to agree with the above living neighbors, so that when draining your apartment is not flooded. As a rule, the need to replace the riser occurs with wear of a cast -iron old pipe, as well as when the tee will be connected. From the tools you will need: a plastic adapter, one meter pipes, beat a grinder, a sealant, a compensator, a rubber adapter, a hammer and a perforator.
A long time ago, before the production of plastic pipes, the junction of the bell with the pipe itself was filled with gray, as a result of which it is quite difficult to break such a connection using only a screwdriver and a hammer. Thus, in order not to make unnecessary efforts, it is permissible to use a soldering lamp for burning a sulfur suture, but before that, full ventilation of the room should be ensured where this procedure will be carried out. After that, using a grinder on top, the sewer riser is cut, and then from below, in the end, to get a segment. Now, very carefully, so that the tee does not crack, the pipe is quietly swaying until it comes out of the bell. And when the riser is disassembled, a rubber adapter is installed on the old pipe, and lubricated with sealant.
If necessary, from below, it is possible to insert an adapter, however, if this is not required, it is permissible to simply cover with a cement solution. After that, the compensator is taken, its necessary length is measured, and you can put it on the pipe. For proper measurements, it is important to take into account that the general value of the length and the compensator should exceed the bell of centimeters by five, and this is after they are already in the adapter. Before the direct connection, it is important to check whether the pipe is freely moves in the compensator, and in case of successful movement, supporting the pipe itself, the compensator can be lowered into the adapter and fully connected. It is important that the connection is of high quality, otherwise during the use there is a chance of crawling a pipe in a compensator, which will ultimately become the reason for the gap. So this place must be lubricated with sealant qualitatively.