RV 178 water dripping - exterior

Hello everyone, Someone on an rPod forum suggested I contact this group. I have a 2015 that I'm currently camping in for a short work assignment on the Oregon Coast. This has been an "up close and personal" into to everything that might go wrong HAS. So, here are the details of which some may or not be pertinent: 1). I have ONLY had my water supply hooked up to city water this trip. I've been camping for about a month and the indicator showed I had about 1/2 tank of water in the fresh water tank. This is odd since I have the trailer winterized last winter and have never put water in the fresh water tank. 2) I do have a water pressure gauge between my hose and the campground faucet. 3) I noticed the other day that my fresh water tank was FULL! Again, no, I haven't filled it. 4) I saw water dripping from both of the rear corners of the camper (the end of the bed). It was also dripping a lot from where the hose was connected to the City Water connection. 5) There was a very slight amount of water inside each of the rear storage units under the trailer. (Just enough to get the tips of my fingers wet. 6) I switched over to using the pump and the water from the fresh water tank. I also turned off the city water from the spigot and released the pressure from the hose 7) Even after all of that, it stopped dripping but had started again from the rear corners this morning. I'm totally mystified. I'm unaware of any water lines of any type that are in the rear of the trailer. Can anyone help? Thank you so much,!!

Years ago in my Keystone, I had a similar problem but it was very sporadic, it did not happen every time I plugged into city water.  After wrestling with the problem for awhile, I installed a water pressure regulator when connecting to city water.  That did the trick, never experienced the problem again.

Bouldergal,

It wouldn't take much of an unlevel to cause water to flow to the rear and it may be taking path of least resistance to flow. Good you are using pressure regulator. Take the cap off the fresh water tank and let it drain, leave it off. Hook up your city water, but before you turn it on, open the back of the cabinets under the sink, both in the cabinet and on the floor. You should be able to see the water lines to faucet and possible outside shower unit as well as the water pump and lines. Turn on your city water and using a suitable light watch your water connections. Look for leaks. If water is coming out of your fresh water tank, your check valve is still an issue. What interests me is you said you have water dripping from the city connection, that could be a loose connection or it may be evidence of flow. You shouldn't have flow unless you have a faucet open. Unless you have a leak or a stuck check valve. It is not uncommon to have water line leaks especially in the area of the kitchen lines. Unfortunately you can't see them without removing the two panels mentioned earlier. I would start in the kitchen faucet/water pump areas.

Good luck!

Same thing happened to me. Bad city water check valve, lets water leak through to your water holding tank in your trailer. The way its put together, it's quite a project to change it out. So I used an easy fix by turning off the city water to your trailer, and use your water in your water tank in your trailer, at least till you run it down to almost empty before you turn on the city water again, then watch your tank gauges that you don't fill up your tank again for an overflow. TURN OFF your city water when you leave your trailer for the day, so it doesn't fill up your water tank while you are gone. I am back on the desert for the winter, BUT still didn't replace the check valve yet. Kind of a job in these trailers to get to the location. Good Luck.