We ran into this issue on our first "real" trip with our '15 Windsport 27k. Per forum advice, we picked up a pressure regulator in advance. This was a lower end, inline regulator with no gauge.
After hooking everything up, we had NO pressure in the rig. Only a trickle in the sinks, toilet unusable. Took off our water filter in case it was defective, no difference in pressure. Replaced filter and took off the regulator; pressure seemed "ok".
However after 4 nights in campground (Key Largo, btw); noticed water on floor in bedroom. Tracked it back, and found our previously empty fresh tank was MORE than full, and was leaking from the top. Of course, we immediately turned off source water, cleaned up the mess, and ran from the tank until departure.
Heading out again next weekend, and hoping for advice on a new regulator. Saddest part is that when we returned from Largo, the "return period" on the one causing problems had just expired.
Anyone need 5oz of scrap brass in return for a recommendation?