Patent ID: 9045873
Filing Date: 2015-06-02
Classification: E02B,E03F

Abstract:
1. In the method of fabricating a leaching chamber for receiving and dispersing water when buried in soil, wherein the chamber is made of injection molded plastic, has a top, a length, an arch shape cross section, an interior for receiving water, an exterior, opposing side base flanges, and two opposing corrugated sidewalls, each sidewall running upwardly and inwardly toward the top of the chamber from one of said opposing side base flanges, wherein each opposing sidewall has a plurality of openings spaced apart along said chamber length, for the passage of water from the interior of the chamber to the exterior of the chamber, the improvement which comprises: (a) molding a chamber with a multiplicity of like-sized openings with like-size peripheries in each opposing sidewall; (b) separately forming from plastic at least two sets of panels each panel comprising a frame and attached barrier, each frame having a shape which is substantially the same as the shape of said like-sized peripheries; each barrier configured to allow flow of water while hindering flow of particulates; wherein the barriers of a first set of said at least two sets of panels have water flow and particulate hindering properties which are different from the water flow and particulate hindering properties of the barriers of a second set of said at least two sets of panels; and, (c) selecting only one of said panel sets and affixing only the panels of the selected one set to the sidewalls of the chamber, so said like-sized openings are covered by the barriers of the selected set of panels.