Thor Forums

[bevedfelker]

Had same problem once in my 2015 Vegas when hooked to city water. The water presseure in the lines was back-feeding through the water pump into the fresh water tank.

Turned off city water. Ran the pump for about 3 or 4 minutes with the kitchen faucet open. Turned pump off and turned city water back on. No more problem.

Turned out to be some debris stuck in the check valve on the pump. Running the pump dislodged it.