In the entire “township” there are no sanitary facilities that are connected to the sewerage system, not even in the school project. However, we have the advantage of a septic tank located below the surface of the project ground into which the excretions are discharged. The septic tank serves houses that are not connected to the public sewerage system. Every few years, this septic tank has to be emptied by a suction truck. The condition of the sanitary facilities in the school project deteriorated due to the overuse of many children and adults in recent years: the toilets were broken, too small, too narrow and very unhygienic. A further use of the toilets would have been unreasonable. Together we decided to renovate the existing toilets.