Reply To: Making a test plate for a Johnson RD-24 and others

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July 6, 2019 at 11:01 am #178491
amuller
Participant

    I suppose you are right that water doesn’t want to pass the stationary pump. These pumps are positive displacement devices when stopped or at low speeds. I think it should pump OK when idling as long as you can supply water, generously, to the suction side of the pump.