Method of cleaning and maintaining water distribution pipe systems
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United States of America Patent
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-
Nov 1, 1994
Grant Date -
N/A
app pub date -
Mar 23, 1993
filing date -
Mar 23, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method of cleaning and maintaining 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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