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Hmmm, do you possibly mean the back wash valve on the filter? This valve has many positions to choose from especially for sand filters. Filter, back wash, drain, drain to waste, filter bypass, closed. They are pretty much self explanatory. Normal position would be the "filter" position while the pump is running and the filter is working.


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โˆ™ 2007-08-16 01:27:54
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Q: Where should the setting be on a drain valve for an inground pool?
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