Elevated potable water tank and tower cleaning system

摘要

A system for vacuuming out sediment when installed on the inside of a gravity feed, elevated potable water tank or tower holding water at a pressure head of the kind having a riser serving as a water inlet and outlet. The system having a manifold installed along the bottom wall of the tank or tower connected to a plurality of downwardly directed nozzles. The manifold is connected to a drain pipe passing down through the riser and is supported so that the nozzles are positioned above the bottom wall in the vicinity of the sediment. When water is allowed to flow through the drain pipe, the pressure head causes sediment which may otherwise be a health risk and promote electrolytic corrosion to be vacuumed out by the nozzles.

主权项

1. A gravity feed, elevated potable water tank or tower wherein an accumulation of sediment occurs along a bottom wall surface, said tank or tower having
a riser pipe having an inside which serves as a water inlet and outlet, said tank or tower holding water at a pressure head, and
a passive system for vacuuming out the sediment comprising a conduit manifold along a bottom wall of the tank or tower with conduit branches connected to a plurality of nozzles downwardly directed to the bottom wall surface, said manifold supported above the bottom wall on struts such that the nozzles are positioned above the bottom wall in the vicinity of the sediment, a drain pipe connected to the manifold and extending through the inside of the riser pipe, a valve for controlling flow of water through the drain pipe, said nozzles and manifold in fluid communication with the drain pipe, whereby the pressure head in the tank or tower causes sediment to be vacuumed out of the tank or tower by the nozzles as water flows down through the drain pipe.