Abstract: A filter assembly for a seawall filters the flow of groundwater through a hole in the wall. The filter assembly includes: (a) a housing containing a flat flange and a perforated conical shell, the shell adapted to extend into the hole with its apex extending toward the landward side, the flange having a seaward side adapted to fit flushly against the seawall, the flange having a landward side connected to the shell, the flange having an opening that defines an open base for the shell; (b) a perforated conical cage having an open base that fits within the shell of the housing; (c) a conical filter element having an open base that fits within the cage; (d) a perforated conical sleeve having an open base that fits within the filter element; and (e) a perforated cap that is removably and flushly fastened to the opening in the flange to secure the cage, filter element, and sleeve within the shell of the housing.

Abstract: A system and process are provided for repairing a sea wall and precluding erosion drainage from occurring on the landward side of the sea wall when a filter material provided at a plurality of weep holes in the wall and at expansion and contraction gaps between wall elements degenerates. The system of invention includes a pipe-like conduit, open at both of its ends; a cap-like protective structure that is insertable over an end of said conduit; a filter assembly comprised of a sleeve-like enclosure and a filter which is situated within said sleeve-like enclosure; and an a rod-like implement insertable within said pipe-like conduit and engageable with said sleeve-like enclosure.