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J.Lloy
03-30-2008, 07:28 AM
Does any one know how many GPH will free flow down a 2" overflow?
bassman
03-30-2008, 12:58 PM
Approx. 3300 gph
mark
03-30-2008, 02:21 PM
work backwards from here (http://reefcentral.com/calc/drain.php)
J.Lloy
03-30-2008, 02:55 PM
thx working backwards 2" is 2350 gph