Patent ID: 7503725

Claim:
A system for water infiltration into subsoil near a building having a yard surface covered by topsoil, such building having a gutter system, sump pump or other source of water discharge directed into an underground drain pipe having a first end and a second end, said first end extending from said source of water discharge and said second end being disposed horizontally in said subsurface soil, said system comprising: a 90-degree elbow pipe having a first end and a second end, said first end of said elbow pipe interconnected to said second end of said drain pipe and said second end of said elbow pipe extending downward; and a vertically disposed cylinder having a top, a bottom, a midsection and side walls having an outer side, said top of said cylinder interconnected to said second end of said elbow pipe which is absolutely centered therein forming a pressure fitting, said midsection made of a high-porosity material being a mixture of Portland cement and activated charcoal, said cylinder having a multiplicity of microscopic pores defined in said midsection, said cylinder having a receipt area defined therein for receiving said water from said second end of said elbow pipe and directing said water first by gravity pressure and then to flow under air pressure created by said incoming water passing through said pressure fitting to pass then through said porous midsection which, by capillary action, further draws said water through said pores and into said adjacent subsoil at a rate sufficient for dispersing said water into said subsoil to prevent yard surface flooding.