Abstract: Water leakage and seepage through foundation walls into basements, cellars and the like, is collected in a trough-like duct positioned on the inner face of the foundation near the bottom thereof and drained into a sump. In one form of the invention, the trough-like duct is positioned between the concrete flooring and the foundation of the basement or cellar and drains into conventional drainage tiles underneath the flooring. In another embodiment, the trough-like duct is secured on top of the concrete flooring against the inner face of the foundation wall and is drained directly into a sump or drainage conduit for the basement floor. Interior wall paneling for the basement can extend into the open top of the duct. In another embodiment, existing basement flooring can be routed adjacent the foundation wall forming a channel to receive the trough-like duct of this invention.