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Old 06-01-2009, 01:37 PM   #1
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digNbubbs's Avatar
Monaco Owners Club
Join Date: Nov 2006
Posts: 530
City Water Inlet Check Valve

About a year ago I posted that I was having issues with the check valve in the city water inlet. Well, finally got around to tearing all that apart and found a stone inside the check valve - which was preventing it from closing.

The check valve is attached to the ball valve that is moved from "City Water" to "Tank Fill". The valve allows city water from the reel to enter the coach plumbing, or fill the tank when the valve is switched. When running on water pump, the check valve is suppose to close the connection to the hose reel. Mine was blocked open, so when we used the pump, we would have to cap the end of the hose on the reel.

The internal organs of the check valve were too damaged to use after the rock extraction, so I am on the lookout for a new one. I have pings into several places. If anyone has a source, it would be much appreciated.

Red circle is around the actual check valve.

Check valve assembled

Location of the entire mess when assembled.

I also replaced the hose on the reel when I had everything apart. I used a 50' 5/8" hose, reeled in as much as possible, and cut off what wouldn't fit. I think I have about 40ish feet on the reel. Nice to be rid of the weak 1/2" hose that was on there.


2006 Monaco Knight 40PLQ | 2011 Jeep Wrangler Rubicon Unlimited
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Old 06-01-2009, 03:04 PM   #2
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Location: Central Florida
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I saw a couple at either Home Depot or Lowe's (maybe both) in the pump section. Both were Watts and one of them looked like this:

Another one had male threads on one end and female on the other. Can't remember if they were 1/2" or 3/4" but easily converted.

Looks like a tight fit and you might need to replumb if you can't find an exact fit. Keeps you out of the bars though.

Dawn and Mark

06 HR Endeavor 40 PET
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Old 06-01-2009, 03:27 PM   #3
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Thanks Mark - I had a good look at a few Home Depots on Saturday, and was not able to find those. I am prepared to do a little plumbing - I may have to cut down one of the PEX lines to get everything to fit. There is a Lowes close by - I will give them a try as well.

Thanks -


2006 Monaco Knight 40PLQ | 2011 Jeep Wrangler Rubicon Unlimited
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Old 06-02-2009, 08:45 AM   #4
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I have the exact problem with mine (o6 vacationer). I just have it blocked when in pump mode. I havent fixed it yet.
2006 HR Vacationer diesel
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Old 06-04-2009, 08:26 PM   #5
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I have this same check valve on my Holiday Rambler. I had to replace it too. Picked one up at the local RV store. They can be ordered from either Stag Parkway or Coast by your local RV dealer.
Smyrna GA
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