Thread: Recommended return pump for 37 gallon?
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Old 08/08/2006, 11:47 PM
theatrus theatrus is offline
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Join Date: Dec 2004
Location: Folsom, CA
Posts: 2,772
A good sump flow through rate is about 4-6x tank volume. So you're looking for about 200gph return rate at whatever height you're pumping to. I'd use 1" or 1.25" return piping. Maybe bigger. Def. not smaller. Maybe a Mag 5 or equivilent?