Secondary containment system for manholes

Details Secondary containment system for manholes Secondary containment system for manholes

B - Operations, Transporting

65

D

B65D 90/04 (2006.01) B65D 90/10 (2006.01) B65G 5/00 (2006.01)

Patent

CA 2070593

ABSTRACT OF THE DISCLOSURE The invention provides secondary containment for liquid carrying equipment which is in a confined area. The invention is especially well suited for retrofitting manholes containing pumps for underground gasoline distributing systems. The pumps or other equipment are removed to expose pipes or wires entering the manhole. Then, plates are bolted around the pipes or wires to engage and support a bag made of a material which resists the attack of the liquid. Holes are cut in the bag to pass the pipes or wires. The bag is placed in the hole, expanded to approximately fill hole, to rest on the plates, and is sealed to the plates, pipes, or wires. The top of the bag is gathered and closed to resist entry of ground water.

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