Week 3. July 17th – July 22nd 2017 Foundation wall. 11 courses or 2.6 meters. All to be buried in the ground. Septic tank. It has a unique way in which it inclines to serve its purpose. If its not cemented it cant be serviced by an exhauster. Substructure The stones and hardcore on the side is used to bury the substructure. It is back filled (poured) into the "rooms" then compacted to form...