Leaching chamber with perforated web sidewall

摘要

A moulded plastic leaching chamber, for dispersing or collecting liquids in soil, has a corrugated arch shape. The sidewall of the chamber is comprised of alternating slot-perforated peaks (34, 34a) and valleys (36, 36a) connected by slot-perforated deep webs (38, 38a). The unit surface length of perforated sidewall is greater than the unit length of chamber. A combination of interrelated dimensions and angles provide high leaching capacity, strength, and capability to nest for shipment. The sidewall is reinforced by vertically running ribs (60); the perforated web is reinforced by zig-zag struts (83). Ribs and struts are shaped and positioned to minimize blockage of the slot openings. <IMAGE>