No Water Pressure

[Tinka N Rick]

We noticed that our water pressure was getting very low. I checked the park water and found that they had 50 PSI, so that wasn't the problem.
Also, when I turned the pump on, we had plenty of pressure.
Since we had neither hot nor cold water, I suspected an obstruction in the line. Trying air pressure didn't solve the problem. The screen on the city water hose connection and was somewhat clogged so I replaced it and there was no change, or water for that matter.
I decided to remove the water inlet box and disconnect the water inlet line. The line appeared clear. Then I removed the flow-back check valve from the hose connection portion of the inlet. Once reassembled without the check valve, the water flowed fine. (Remember to use the seal when reassembling the inside hose or things get wet.
Since our pressure reducing connector at the hose has a check valve built into it, the water system can't get contaminated by any back-flow. At least this solution provides us with good pressure and will work until I can replace the valve.
A little plumber's tape to seal the box on the rig and we nearly good as new.
I don't know how many others have had this valve failure, but I thought that I'd pass it along to save you some time when it does happen.

[kmh3212]

I had a pressure reducing valve that fits on the hose bib at the park fail. It was one of the brass ones. Of course it was 15 years old! I've never tried one of the plastic pressure reducing valves.