Originally Posted by rodandmir
I had the same issue, and just extended the overflow hose to the propane quick coupler bracket and added a valve. Now I open the valve and fill the tank until it overflows and then close the valve to prevent spilling while traveling. Some people have mentioned that the pump can cause the tank to collapse when using water if you dont open the valve again, but that I have never had an issue.There is a small breather next to the filler that will allow the tank to breathe.
On the X213 the tank is only 26gal, so we usually carry a few 6gal water jugs with us as backup.
Rodandmir: The breather may be hooked up on your TT, but on some it is not always hooked up. Since the overflow tubes also act as a breather vent, I think the factory doesn't always hook up the normal vent. On mine, the gravity fill and breather element are visible on the inside from the cabinet below the kitchen sink. Sure enough, the hose to the breather element is not even there. Only vents through the overflow tubes. Seems goofy that the factory wouldn't hook it up (especially with the leakage problem with the overflow tubes) but that's what happened with my TT.