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Old 01-08-2017, 10:17 PM   #12
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City: North of Texas
Country: USA
Join Date: Jul 2016
Posts: 198
Centrifugal pumps are affected most by suction side restrictions. Positive displacement pumps not so much. And at some point, a "filter" becomes a strainer. Keeping sand out of your impeller or tank doesn't require a particularly fine filter.
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