Sewerage system is a complex of engineering constructions and equipment providing collection and abstraction of polluted waters outside populated areas and also their purification before reservoir burial. It’s possible to divide sewerage system into internal and external sewerage system. Internal sewerage system is used for manufacturing waters receiving on the spots of their formation and their abstraction from a building into external sewerage system. For integration of external sewerage system we proffer Sanit systems of installation, sanitary equipment HL, pipe equipment SFA and also systems of sewerage pipes and fittings Coes and Polytron. As external sewerage system we put forward sewage disposal plants Uponor SAKO.