Quote:
Originally Posted by awheeler
Anyone ever overfill the black tank when flushing and have water come out the vent from the roof? I saw this today at the RV park where were are spending the night and wondered what the ......!
It was a Montana - I thought an overfill would flood the inside or basement first?
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That’s why they tell you not to close the valve when flushing. To prevent just that. You have to stay at the camper when flushing. Especially if your like me and close the valve to build up some water to flush the bottom of the tank. Otherwise it don’t flush good enough.