36_PawsExplorerDec 13, 2016Fresh water tankWe have a 2005 Tiffin Allegro open road. When we are connected to city water and the valve turned to city water our fresh water tank over fills.Thanks for any help.
Mile_HighExplorerDec 14, 2016Ya I would agree about the check valve. All it takes is something stuck in the diaphragm. For grins, you might try shutting off city water and run a high demand on the pump from the tank to see if it will clear the check valve.
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