Originally posted by MidwestCamper
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What if after we fill the fresh tank until water is seen from the over flow pipe. Then we stop the fill and then turn on the pump and run some water in a sink inside , or spray port outside. I wonder if this would pull a small amount of vacuum thru the over flow pipe enough to stop the siphoning effect? I think when the weather warms and I can get the RV out in the drive I will have to do some experimenting.
Brian
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