So I was out camping a couple of weeks ago and everything worked fine. Pull into a campground today, hook up the hose and I get water pressure for a few seconds then it trickles out to nothing( both hot and cold) good pressure on the hose, connections are tight, can't figger it out. Finally give up and pump some water into the fresh water tank to run off the onboard pump. No luck there either.it keeps clicking on and off like I have a leakage the foset is off, as well as then the foset is on. Barely any water flow out of anything in the camper. Looked everywhere and cant find any leaks. I am very stumped, any one think of something I can check or try? Only thong I can come up with is maybe some mud dobbers filled up the hose connector and i didn't se it. I can see that calling up the hose fitting but don't think it would have any effect on running the on board pump.

is there by any chance a relief valve in the water line that may have failed open?

Nope no filters. Don't believe it has a relief valve ( and if it was that I should be seeing the water go someplace). Will have to look and see if the hose line runs through the pump. Thanx. Hoping its something simple, have a big week long family trip coming up in a few weeks too and NEED the water working. Just so frustrating because there isn't that much to these things

The inlet for the outside water to hook up to on mine has a check valve where the hose screws in - just a lightly loaded spring plate. The water pressure from the pump in the trailer keeps it closed when no outside water pressure is on it. It seems to be part of the hose fitting built into the trailer.