gravel and pipe. Surface water soaks into the ground, filtered through the gravel, through the holes in the pipe and channeled away from the house.
b) Interior weeping tile is often used when an exterior weeping system has failed. This system is installed under the basement floor where water is directed to a sump pump, through the pipes and to an exterior storm sewer. Installing a French drain beneath the basement floor is similar to installing a sump pump. A 12-inch wide by 12-inch deep trench is cut around the entire perimeter of the basement. A pipe is placed inside, filled with course gravel and covered with concrete.