We just returned home from a four day outing at the State park near Vantage WA. The campground has all utilities, including 50 amp and H2O with pressure at the campsite of about 45 to 50 #. When I broke camp, I followed my normal routine to disconnect the coach water hose from the camp faucet, leaving the end of the hose empty while rewinding the hose. As the hose was almost totally rewound, I noticed that the hose was continuing to drain a significant amount of water and continued to do so for several minutes. I elevated the hose end about four feet and water continued to run. It finally slowed to a trickle and I put the hose cap on and finished winding the hose. During this time the water pump was not on. At a rest stop on the way home, I noticed water running from out of the water bay. I looked at the hose and water was escaping from the cap on the hose end. I removed the cap and water continued to run. I finally put a brass shut off valve on the end of the hose to stop the flow. When I parked the coach, I opened the valve and sure enough, water continued to flow. I suspect that water is being siphoned from the fresh water tank, pressure possibly from the accumulator tank. Is there a backflow valve that may have failed or does anyone have any idea why this might be happening?
