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Old 04-07-2011, 10:03 PM   #5
C lectric
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City: Gibsons, B.C.
Country: Canada
Vessel Name: Island Pride
Vessel Model: xxxx
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RE: copper supply lines

An accumulator should help but first check all the piping for a loose or poorly supported section that rattles or knocks against something else.
If the new pump is higher pressure than the old it may have caused a new noise. Pressure pulses may be more distinct.

A short length of hose (12" or so) between the pump and the copper lines will also act to help isolate pump noise from the system.
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