Underground drain tank

Details Underground drain tank Underground drain tank

E - Fixed Constructions

04

H

E04H 7/26 (2006.01) B65D 88/76 (2006.01) B65D 90/10 (2006.01) B65D 90/50 (2006.01) E03F 11/00 (2006.01) G01M 3/02 (2006.01) G01M 3/26 (2006.01) G01M 3/32 (2006.01) G01N 1/14 (2006.01)

Patent

CA 2132799

A drain tank for installation underground has a longer life than steel and fibreglass tanks and has a leak detection system to identify leaks. The drain tank comprises a sealed concrete chamber having at least one opening at the top thereof with a collar integral therewith, a manway connected to the collar extending upwards, the manway having a top lid with a vent and pump out exit. Inside the concrete chamber is an impervious flexible bag liner which is sealed to the collar; an entry pipe passes through the chamber and the liner and a leak detector tube passes down into the chamber to a location at the base between the chamber and the liner for an insertion tube to pass therethrough.

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