Fresh water tank filling by itself
We recently upgraded to a new to us 2002 Sunny Brook Mobile scout. I emptied the fresh water tank about 1 week ago using the pump. Today I noticed water coming out the overflow on the fresh water fill...
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Check valve in the water pump. If it's an older pump, replace it. If not, replace the check valve.....most RV parts store keep them in stock. Valve about $10. Easy repair.
