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Old 01-21-2014, 08:53 PM
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XStream Aquatics XStream Aquatics is offline
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Join Date: Aug 2008
Location: Danville, KY
Posts: 239
as far as gph, you said 36"-46" wide spillway. I like to have 100 gallons for every 1" wide and 1" thick, meaning 36 inches wide at least 3600 gph pump.....NOTE that is not factoring in your head/lift so you need to apply that also.
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