Here's the problem, if I'm hooked to city water with the water tank empty I'm fine. If I fill the fresh water tank even half full and don't turn on the pump at any time after about a day the fresh wat...
My MH has a valve that allows the tank to be filled while hooked up to city water. If the valve is not shut all the way the tank will slowly fill. Or the check valve on the water pump may be bad allowing a back flow thru the pump