Had similar issues with our 2018 Four Winds 24F, 4 times this summer the fresh water tank over flown and the check valve on the discharge side opened up(gurgle) to a point the pump did not reach the pressure switch cut off set point. I closed the check valve until it reached the pressure switch cut off set point. since then the pump short cycle quickly. very annoying as I can,t leave the pump switch on. Waiting for my warranty service appointment .
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