Pump hammering after installing accumulator
I have a class B with a nearly new pump (Shurflo 4008, installed about 1 year ago). Even with the bypass, running the sink caused pump cycling to a degree though not as bad as it was with the old 3 ch...
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It may be as simple as a line up against a wall or other hard surface someplace. That can make a tremendous racket. A bit of pipe insulation will stop it.
