How to figure drain gph

H

Hookem2006

Premium Member
I am trying to figure out how to figure how many gph my tank will drain. I have a 93 gallon cube tank with a 1 inch drain, and a 1 inch return. Can anyone help me solve the riddle? [smilie=thinking.gif]
 
Roughly 600 GPH max depending on a few variables. http://reefcentral.com/index.php/drainoverflow-size-calc

Cheers,
 
Thank you kind sir. So I need to get a return pump that can handle more than 600 gph then. Any recommendations on brands?
 
After head loss you'll need to make sure that the return pump will send less than 600gph into the tank. If you go bigger on the return pump be sure put a valve on it so you can dial it back if you need.
 
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