This question is regarding Watermill Pump WASP 50 - Spare Parts

Wasp 50 water knock/oscillation

My Wasp 50 works perfectly quietly most of the time. Then it develops what appears to be a resonating sensitivity to a water knock if you turn off the water taps quickly. Turning off all associated water taps slowly for a while cures this and the problem then quietly goes away, but reappears again without explanation. There are no anti-knock throttles fitted. Any suggestions please
Asked 8 years ago by David
It sounds like you have a faulty actuator , which is sticking in place causing the oscillation or a faulty reed switch.

Answered 8 years ago by Anonymous

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