土堆化糞系統安裝 照片檔

Erskine, USA - June 25, 2018: A new residential mound septic system is being installed. Scene of a construction site where a new septic tank has been lowered into the ground. Shown is the trench, the septic pipe, a bed of sand covering the pipe, styrofoam insulation covering the sand, electrical wires for the pump, the tank, work tools and a worker sitting in the backhoe.