I game a 2015 Big Country and I am have an issue with the water hook-up. When the hose is hooked up to the input water source there was no flow in any of the modes, city, tank fill, or Normal no results of water flow. I proceeded to disassemble the water input and removed the back flow valve. When this was completed the water was flowing again. So need a replacement fixture. Then went to do a by-pass of the hot water tank. This did not work either. Do, without taking everything apart are there any ideas. Thanks and Happy Trails!