Thread: GPH ratings for PVC ?
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Old 01-16-2004, 06:15 AM
CHEAPREEF CHEAPREEF is offline
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Since PVC is inside diameter you can just go here http://www.reefcentral.com/calc/drain.php?gph=700 and check the flow. If you looking at 2 11/4" drains they should flow 900GPH each according to the calculator.

Clinton
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