water pump check valve
I have a bad check valve in my water pump. When hooked up to city water my fresh water tank fills over night. I know for sure because I have a by- pass valve I use for pumping antifreeze into the syst...
Forum Discussion
Rangerman40 wrote:
Might not be your check valve. In your water closetcdo you have a selector knob for your water? I believe it says "normal, tank, city, winterize" on it. My fresh tank was filling overnight and I thought it was the check valve as well but it turned out to be that selector knob. There is a cartridge behind that knob with a bunch of o rings in it to line up with different water hoses to go different directions and it wasn't sealing properly.
Ranger man is correct, if your coach has the Anderson 4 position valve it is very common for it to leak back into your water tank and cause the overflow condition. Very easy to replace if necessary. Most common cause for blowing the o-rings is turning the selector valve while there is pressure in the system.
