The French Drain
This older house suffered with damp rizeing up the
walls. Although sum degree of humidity is expected in older houses built with out damp course
this problem became much worse after a new house built near by, interrupted the natural course
of a spring. It was decided to install a french drain
close to the walls of the house in order to intercept
the approaching ground water.
A trench is dug close to the walls
of the house and a permeable pipe
laid in the bottom. It is covered
with clean washed stone that supports the pipe and prevents
collapse but allows the water to find
the small holes in the pipe, collects
in the bottom and drains away. The
entire trench is back filled with stone until 4 inches from the ground level where its covered with
geo text and this is then secured with the rest of the stone.