Hi guys - we have a 2004 Roadtrek 170 and on our last trip everything was working fine and then the water pump started losing prime after sitting a bit. Replaced the pump as we had an extra. That didn't fix it.
The pump holds pressure - I can turn off the pump and come back hours later turn the pump on and it doesn't run. But when I turn on a faucet the pump runs and runs and has to prime itself.
Is it the water inlet check valve? Is that even connected within the FW tank plumbing and the pump? Seems like that would drain the plumbing after the pump so pressure wouldn't be held.