Method of cleaning and maintaining potable water distribution pi

Details Method of cleaning and maintaining potable water distribution pi Method of cleaning and maintaining potable water distribution pi

1996-07-05

1999-03-23

Warden, Jill

Cleaning and liquid contact with solids

Processes

Hollow work, internal surface treatment

134 2213, 134 2214, 134 41, B08B 902, B08B 906

Patent

active

058853642

ABSTRACT:
A method of cleaning and maintaining potable water distribution systems which have reduced flow due to an increase of water scale deposits, sediment, and the like on the inside surface of the pipe is disclosed. An aqueous acidic cleaning solution is introduced and circulated through the pipe to be treated for a sufficient time to dissolve and loosen the scale and sediment, and the spent solution containing dissolved or suspended scale and sediment is flushed from the pipe to provide a cleaned pipe with improved water flow. It is also desirable to flush the water distribution pipe system with high pressure water after the treatment to remove loosened scale and sediment that was not removed during the circulation and flushing of the treating solution.

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