Check valve location
Settle a discussion. If you add a check valve to PREVENT back flow to the on-board water tank should it be on the house side of the pump or the water tank side, or does it matter not? The trailer doe...
Forum Discussion
troubledwaters wrote:
I would put it on the intake side of the pump, so the pump stays full of water. YOMV
Exactly ^^^^^
IF pump internal check valve is leaking and you put a check vlave in-line on discahrge side of pump the pump casing will depressurize and pressure switch will close causing pump to short cycle.
If you put that check valve in-line on pump suction side then pump casing stays pressurized and pump will only start when SYSTEM pressure drops from opening a faucet etc (OR leak in system)
OR
FIX pump internal chekc valve
