We determine the type of sewer system:
Septic tanks working on the principle of sump. Consist of several communicating vessels, a solid fraction settles in them, the liquid part shimmers into the next container. The water at the output is not completely cleaned, for its disinfection, additional filtration in the soil and the release of a special scattering field is required. The sediment is partially redundant without air access, it is periodically removed by the Assenial machine.
