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Old 03-30-2010, 12:59 PM   #1
drylaarsdam
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No water pressure in city water system

I have a 2003 2955RL. When on city water, the faucets spit then there is nothing. If I disconnect the city water and use the fresh water tank with the pump, everything works well. Is there a check valve or back flow preventer in the city system that could be the problem. If so, where is it?
thanks
 
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Old 03-30-2010, 01:11 PM   #2
awaywego
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There is a check valve behind the screen where you hook the hose to the unit.Probably the screen is stopped up.
The check valve stops backflo into the hose and if you mess with it it may come apart.
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Old 03-30-2010, 01:27 PM   #3
Art-n-Marge
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Make sure you turn on the water supply up to the hose full blast right before it connect to the city water inlet of your trailer and test that your water supply is at a good pressure. I have had pressure regulators fail on me and prevent water flow.

Otherwise, it does sound like the check valve at the city water inlet that "awaywego" mentions.
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Old 03-30-2010, 01:39 PM   #4
firetrucker
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Someone else had that problem last year and it turned out to be a bad hose where, I think, the inner liner separated from the outer casing. Try a different hose.

Bob
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Old 03-30-2010, 04:07 PM   #5
drylaarsdam
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Thanks for your input, the screen is clean and the hose functions well, I tested it before hooking to the fifth wheel. Does one have to completely remove the fixture that contains the city water hookup and the freshwater fill port from the fifthwheel to get to the checkvalve and perhaps replace the complete fixture?
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Old 03-30-2010, 04:36 PM   #6
HughM
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I had the inner hose collapse and got nothing out of the hose. I thought I was going nuts as I could feel the pressure at the nozzle but nothing at the end. I switch hoses and regained my sanity.
Hugh
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Old 03-30-2010, 05:08 PM   #7
hookman
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Take out the water filler and see if it will let water through if not go to the RV store and and buy a new one. The check valve is part of the filler.
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Old 03-30-2010, 05:10 PM   #8
Art-n-Marge
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Hi David (Rylaarsdam),

Good to hear your hose is working great but this would have been the easy fix. This sure sounds like a check valve problem. I found a forum post that discussed this somewhat. Maybe this will help but be careful because this could be a $65 to $75 fix...

http://www.montanaowners.com/forums/...ms=check,valve

Please keep us posted, because as you can see when you post your resolution, it can help others.
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Old 03-31-2010, 04:39 PM   #9
drylaarsdam
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Thanks for all your info. It was the check valve & I decided to just replace the whole fixture. All parts (the fixture, caulking etc) was about $80. Fortunately I was able to make the change, took about 15-20 minutes & all is well. The forum for information exchange is great, keep it up.
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