I HAVE A 2010 BIG COUNTRY AND HAVE A LEAK IN THE TANK. I CAN PUT WATER IN THE TANK AND IT LEAKS. I CAN HOOK UP TO CITY WATER AND EVERY THING WORKS OK. HAS ANYONE HAD THIS KIND OF PROBLEM?
2012 Big Horn 5th. wheel--My fresh water tank did the same thing. Look at the filler hose/line hose going to the fresh water tank. My hose was too long and was caused it to kink up and cause the linking. The second problem was the plastic elbow joint to the hose was cracked. Fixed those and no more leaks.