When building a house, cottage or cottage, it is necessary to solve issues related to the installation of plumbing, sewage. In particular, how to properly install toilets, washbasins, bathrooms and showers, how to economically operate and repair them. Important questions are how to competently conduct sewerage, install septic tanks, filtering wells, yard latrines. You will find answers to these and other questions in this book. Thanks to this, you can, without resorting to outside help, correctly install plumbing and drain the house. Sewerage is an integral part of the water supply and sewerage system, designed to remove solid and liquid human waste products, household and rainwater in order to clean them from pollution and further operate or return to the reservoir. A necessary element of modern urban and agricultural. Violation of its work can worsen the sanitary and epidemiological situation in the area.