So I pulled the enclosed underbelly off of the area where my fresh water tanks are. When I paid for "heated insulated tanks" I was expecting to see more than ONE strip of insulation about 18" wide and 3' long... If that. As for the leak under the trailer it appears it was leaking where the two fresh tanks are connected to each other. By looking at the material they use for the enclosure I can see where the drops of water start and then spread. Also saw how the main fill line was bent at a 90 degree angle so that explains why it took forever to fill my fresh tanks. Tomorrow I'll get some more tube to connect the tanks. HD didn't have anything that fit.