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Old 09-28-2011, 12:40 PM   #1
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2000 35' Land Yacht XL w/2 slides
Greenville , Ohio
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City/water tank check valve

Where is the water check valve in a 1984 Airstream Motorhome 345. I filled up the watertank and turned on the pump and found water coming out in a steady stream from the city water hose located on the reel in the lower compartment. I temporarily installed a shutoff valve on the hose outlet to get me by for camping this weekend but I need a permanent fix. I did take the rear bedroom plywood off the bed to locate the check valve, I believe I found the pressure valve. Is the check valve build into the pressure valve. My owners and service manual do not provide any detail, pictorial etc.
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Old 10-02-2011, 01:36 AM   #2
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1984 34.5' Airstream 345
Foothill Ranch , California
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Hi Gunner!
Mine is an 84 too, and I am just going through this whole water reel, and underbed plumbing, but did not want to reply until I had a clue...
I have a pressure regulator, in the rearmost corner, but cannot see a "Checkvalve" anywhere... the only thing I thought it might be is the brass thing on the water hose that you screw onto the faucet at the campsite?
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Old 10-02-2011, 08:05 AM   #3
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The check valve is pretty much buried in the plumbing. You can install a second one between the hose reel and the rest of the plumbing. You'll probably have to remove the hose reel to get in there. It won't hurt a thing to have the second one.
The pressure regulator is usually a brass or copper-colored inverted-funnel-looking thing with a screw on the funnel end.
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Old 10-02-2011, 02:26 PM   #4
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2000 35' Land Yacht XL w/2 slides
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I believe the check valve is the brass fitting fastened to the Bell shaped pressure regulator. I was hoping someone knew for sure. I took the bed apart and banged on the regulator and the brass fitting, that seemed to do the trick since the water stopped coming out of the city water hose inlet. I left the shut-off on the city water hose inlet during our campout just in case but the times I checked by opening the shut-off no water came out. I guess the banging on the regulator must of dislodged anything that was keeping the check valve from closing.
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Old 10-02-2011, 02:34 PM   #5
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Quote:
Originally Posted by gunner View Post
I believe the check valve is the brass fitting fastened to the Bell shaped pressure regulator. I was hoping someone knew for sure. I took the bed apart and banged on the regulator and the brass fitting, that seemed to do the trick since the water stopped coming out of the city water hose inlet. I left the shut-off on the city water hose inlet during our campout just in case but the times I checked by opening the shut-off no water came out. I guess the banging on the regulator must of dislodged anything that was keeping the check valve from closing.
Yes, I think you found it. The check valve on most AS is screwed into the bell shaped pressure regulator, on the input side. It just looks like another brass fitting, maybe two inches long. You might see an arrow on it pointing to the pressure regulator if you are lucky. As was said, if it continues to cause you problems, a second one will not hurt anything, if the original is stuck open.
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Old 10-03-2011, 07:49 AM   #6
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2000 35' Land Yacht XL w/2 slides
Greenville , Ohio
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Thanks for the confirmation. Since this was our last trip for the year and I will be winterizing the Airstream in the next several weeks I will not have to address this again until next spring.
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