Before revision: Scheme of a cesspit which is constructed like an underground holding tank A cesspit (or cesspool or soak pit in some contexts) , is a term with various meanings: it is used to describe either an underground holding tank (sealed at the bottom) or a soak pit (not sealed at the bottom).
After revision: Scheme of a cesspit which is constructed like an underground holding tank A cesspit (or cesspool or soak pit in some contexts) is a term with various meanings: it is used to describe either an underground holding tank (sealed at the bottom) or a soak pit (not sealed at the bottom).