Water lines
I have a 2008 Forest River (Cardinal) 5th wheel that I bought new. I hand never had any issues with the water lines, until now. When I am hooked up to shore water it is some how crossing over and fi...
Forum Discussion
Do you have a gravity fill for fresh water tank OR vlaves/switches you change on a water panel?
If you have water panel......fresh water tank 'Fill' valve could be leaking thru.
OR (most likely) the on-board water pump internal check valve is leaking allowing water to back flow into fresh water tank.
Running pump sometimes will clear scale/debris on check valve allowing it to fully close.
Check valve can be replaced in pump.....about $15
Install an in-line check valve on pump suction line.....about $10
Replace pump....upgrade about $70
If you have water panel......fresh water tank 'Fill' valve could be leaking thru.
OR (most likely) the on-board water pump internal check valve is leaking allowing water to back flow into fresh water tank.
Running pump sometimes will clear scale/debris on check valve allowing it to fully close.
Check valve can be replaced in pump.....about $15
Install an in-line check valve on pump suction line.....about $10
Replace pump....upgrade about $70
