[GreenSpottedPuffer]

Originally Posted by mark

when you determine the flow, here's a couple of links for pump selection

http://www.reefs.org/library/pumps has the flow curves and wattage


http://reefcentral.com/calc/hlc2.php determine loss with plumbing and pump

Is there such thing as an "ideal" flow though? Reason I ask, is with this style overflow, its all determined by the return pump, not the overflow itself. So I want to get a pump at the flow I need. Then I match the overflow to the pump and have the exact flow through the sump Im looking for.

Have not been able to find any reference though on what flow through a sump or refugium is good.