Fresh water tank back filling thru pump
I am having a problem where the fresh water tank is filling while hooked up to city water. I think is must be coming thru the check valve in the pump. Does anyone know if the hole pump has to be repla...
Forum Discussion
Sand, grit, or calcium (from some sources of hard-water) can cause the check-valve built into the exit-side of your water pump to stick slightly open. Then when hooked up to city/camp water it will back-flow thru the open check-valve and eventually overfill your fresh water tank.
First, turn the city water off at the faucet. Then turn your pump ON, then open a faucet in the lavatory or galley, etc. to allow the pump to push the debris out/thru the check valve. Operate the pump on/off/on/off a could times with the faucet open. Then with the pump flowing water close the faucet and turn OFF the pump.
Open the city/camp water and observe if that hasn't cleared the problem.
I've demonstrated this to several owners and it solved the problem for all but one of them. We had to disassemble the checkvalve for his pump and clean it out with vinegar, then reassembled it at it was fixed.
Hope this helps.
First, turn the city water off at the faucet. Then turn your pump ON, then open a faucet in the lavatory or galley, etc. to allow the pump to push the debris out/thru the check valve. Operate the pump on/off/on/off a could times with the faucet open. Then with the pump flowing water close the faucet and turn OFF the pump.
Open the city/camp water and observe if that hasn't cleared the problem.
I've demonstrated this to several owners and it solved the problem for all but one of them. We had to disassemble the checkvalve for his pump and clean it out with vinegar, then reassembled it at it was fixed.
Hope this helps.
