The pipe is polyethylene sewer

Increased requirements as their violation can lead to sharp deterioration in a sanitary and epidemiologic situation in habitats of the person are imposed to pipes sewer system.

And fully polyethylene pipes for the sewerage conform to these requirements. Pipes polyethylene sewer and water, steel it is made relatively recently. But, thanks to the high operational characteristics, they gradually force out pig-iron, concrete and metal pipes from systems of a drainage system and the sewerage.