Fresh water tank

If you get intermittent cycling when using the pump system (no city water hookup), then the problem is likely a bad check valve in the pump. Otherwise, it is likely a leaking fill valve.

the shut off on my bounder was a small brass valve. it had an O ring that had a very tiny slit in it and it would leak water past and back into the tank.
bumpy

Old-Biscuit wrote:


Other possibility is the on-board pump internal check valve is leaking allowing water to back flow thru pump.

It's happened to me. I put a ball valve inline in the pipe from the pump and close it when we are on shore water or open it to use water thru the pump. The pump stopped the intermittent cycling too.

If you have a FILL valve it could be leaking thru or is cracked open

Other possibility is the on-board pump internal check valve is leaking allowing water to back flow thru pump.

Fresh water tank full.......turn off city water and run the pump using tank.
Flushing water thru could free up/clear pump check valve

FILL valve....open/close it and see if it shuts off better. Otherwise replacement

126crosby wrote:
Tank fills up when using outside hook up. Even with valve ofg

well the only thing that causes that is the valve is leaking by
replace the diverter valve