For the sewerage device in the country, a big plus is the non-volatility of the sewage treatment system. The “Rostock” septic tank has such an advantage, therefore it can be mounted even in country houses without electricity. Seamless production technology from several layers of polyethylene has several advantages: smooth walls do not accumulate deposits, and the strength of the tank increases. Reviews from the owners of the Rostock septic tank will be useful before purchasing equipment.