The theme of this graduation thesis are sewage system and their maintenance. Maintenance and the most common problems with the sewage system will be described bazen on the available literature, and on a specific example, on the Čepin settlement sewage system. The main variables on which the longevity of the sewage system depends are the year of construction, the area and the way the sewage system was constructed, pipe profiles, pipe material, slope and length. In the settlement of Čepin, the sewage system was completed in 2016 and it is one of the first and most expensive projects co-financed by the European Union. Sewage was built in six stages and has 10 sewage pumps. The total length of the sewage system is 66.888 meters, and the length of the sewage system, which is analyzed in this thesis (ll. phase) is 4.794,68 meters and has 34 shares. The pipes are polypropylene, with an internal diametar od DN 300 od DN 250. Ways of maintaining the sewage system in Čepin are regular maintenance, investment maintenance and maintenance in extraordinary conditions. Problems occurring in the sewage system are the result of bad performance, while the appearance of cracks and pipe breaks has not yet been observed. Damages to the sewage system were analyzed in this thesis, and which are the result of filming the shares with a CCTV camera. The observed problems are supported by pictures of the damage.