Water Water Everywhere

22WANDER

Thanks for the update......nice when an OP reports back.
Glad it was an inexpensive repair

WAHOO Fixed it! It was a bad city fill/tank valve.. Luckily the CG had pretty good RV store and they had the($10.) part. Took an hour and half to change it only because it's behind a panel. Thanks for all the support.

We had a 2001 Winnebago Adventurer and experienced a similar problem. I believe as others have said you probably have a problem with the city water/tank fill valve. When we first started RVing I filled the tank by switching the valve to the tank fill position. I shut off the water at the source and disconnected the hose. Every time we tried to use the pump it ran continuously and had very low water pressure. I discovered I'd left the valve in the tank fill position. The pump was recirculating the majority of the water back o the tank. A simple flip of the switch and everything was back to normal.

So to your question are the 2 connected? The answer is yes. To the other question do they ever fail? The answer is also yes. But, before you change it out disconnect the hose and look into the connector on the motorhome. There's a spring loaded valve that's supposed to seal the hose connection when the hose is disconnected. If it gets off center it acts similar to leaving the valve in the tank fill position. When using the pump water will recirculate to the tank.

If this is the problem you may be able to correct it by removing the hose and depressing and releasing the spring loaded plunger a few times. If the seal recenters itself you should be able use the pump normally with the valve in the city fill position. If this doesn't correct the problem it's probably time for a new valve.

Just curious, if on pressurized city water, why would you turn the pump on?

On my last coach the pump would run all the time if I left the hose connected even though the city water was turned off at the tap. Had to remove the hose which released the pressure on the fill valve and allowed the pump to function normally. Discovered this when de-winterizing.

the plastic valves on mine are simple.Remove knob and push on stem while turning and the stems come out the backside.Stems have O-rings on them.Relace rings and lubricate with plumbers grease and reinstall.No need to but new. JMO

dave

Retired JSO wrote:
My reply won't solve your problem, it is my practice to turn off the water when we leave the MH unattended for any length of time. Weak lines and abnormal pressure can cause real water problems.

Amen to this!!! We do the same thing when we leave the MH. I have a 1/4 turn ball valve on the water spigot and turn this off before we leave.

As to the pump issue, there's a leak somewhere in your MH causing the pump to continuously run or cycle. I'm not going to speculate on where it is because I would only be guessing. I'd get in there and look everywhere for that leak. Pull as many panels as you can and buy some new batteries for the flash light. I've dealt with leaks over the 20+ years of MHing and nothing beats looking.

Buying and changing the water inlet is a cheap and easy fix. If you suspect it, replace it.

-paul

Had this happen recently at a CG with insane water pressure. The components in most RV's have a threshold. I found out the hard way, gotta use a pressure regulator.

My reply won't solve your problem, it is my practice to turn off the water when we leave the MH unattended for any length of time. Weak lines and abnormal pressure can cause real water problems.

Old-Biscuit wrote:
IF the 'fill' valve is bad the pump will just 'round robin'.....suck water out of fresh water tank, flow thru cold plumbing lines back to water panel thru fill valve and back to tank. Doing so it can't build up enough line pressure so pump pressure switch can open and turn pump off.

Same thing as a leak..

X2

Everything you reported sounds like the city water fill valve is broken in the open position.

Does a plastic valve fail.... uh... yeah....