Water tank

[rmichaud6489]

I own a 19 ft Flying Cloud. I am hooked up to city water and yet my water holding tank is filling up. This is the first time this has happened. Have I opened or closed a peacock valve I should t have? I have 2 valves under the dinette and 2 valves in storage compartment in back. What am I missing?

[Cannonball]

Originally Posted by rmichaud6489

I own a 19 ft Flying Cloud. I am hooked up to city water and yet my water holding tank is filling up. This is the first time this has happened. Have I opened or closed a peacock valve I should t have? I have 2 valves under the dinette and 2 valves in storage compartment in back. What am I missing?

I have had a similar problem with our Sport 22FB. Per the advice of Boxite here on the forum, my problem was solved by doing the following:

1. Turn off the city water.

2. Turn on pump, have water in the onboard tank.

3. Turn on an interior faucet, sink, shower, whatever full blast. Flush toilet.

4. Shut off. Repeat a couple of times.

5. Turn off pump.

6. Turn on city water.

7. Check to see if problem is resolved.

Apparently the pump has some kind of one way check valve that can stick open, piece of crud, lime, whatever. Doing the above dislodges the junk and allows the valve to close. This now keeps the city water from flowing backwards through the pump and overfilling the fresh water tank.

[AirstreamInc]

Hi rmichaud6489,

Please call our customer service and technical support team at*1 (877) 596-6111, option 2 so we can learn more and help.

Thanks.

[Msherw]

Interesting. I had the same thing happen on my camping trip this last week.

SeeLevel monitor said I had 25% on board water. I hooked up to the site water supply. Next morning my on board tank registered 85%. Figured it was a back flow issue.

I checked the book for my 2018 22FB and it didn't mention a back-fill possibility. Well, the monitor said it happened. I shut off the site water and drew down the on board. Tried it the next day and no back fill.

Would you share what AS tech support recommends if you call them?

[dbj216]

I agree with the diagnosis. I sounds like the check valve is leaking, maybe due to contamination. Running the pump will backflush the check valve and may clear the debris.

This thread is the first I've notice the Airstream Inc Ambassador post. This is great news to me. Having the mothership read over some of our posts will give them great insight on what's going on, good or bad. Thank you very much AirstreamInc for signing up and participating in these Forums. Great news to me.

David

[Msherw]

The back flow issue is just not bad enough to get a dealer fix. Run it a few times and it will not back flow again. I have well water that has a lot calcium carbonate and I suspect it gets stuck once and again.