US Patent 7836640 Water drainage system

A water seepage control device having a wall panel positioned vertically against the interior of a foundation wall, a base member extending horizontally from the bottom of the wall panel over a foundation footing, such base member having a plurality of elongated V-shaped formations formed therein extending downward with the points of such V-shaped formations resting on the top of the foundation footing to form a plurality of drain channels therebetween under the base member for directing water, coming down and through the interior foundation wall, through the drain channels and over the end of the foundation footing to a water-collecting area.