In the pipes and devices for their connection, special grooves are provided, where sealing rubber rings are installed. By connecting sections, sometimes they use silicone for reliability Pacley Flax, which can be bought in a construction store. This method or the use of special reinforcement avoids the course of. After a certain distance, it is recommended to install the tee connector with the output of the pipe to the surface — this makes it possible to clean the drain in case of clogging.