How to figure out gph rating?

sir_dudeguy · 10/20/2015, 05:45 PM

I'm assuming it would be easy to calculate the gph of a hob overflow, but I'm not sure how!

Anyone know how to figure his out?

Ron Reefman · 10/21/2015, 04:43 AM

How about putting a container, say a 1 gallon milk bottle, at the outlet of the drain. Time how long it takes to fill. Say it takes 1 minute, then you have 60gph. If it takes 10 seconds you have 6gpm which is 360gph. If the time it takes to fill a 1 gallon container is too short for timing accurately, try a bigger container, like a 5 gallon water jug. The math isn't that hard.

10/20/2015, 05:45 PM	#1
sir_dudeguy Registered Member Join Date: Mar 2006 Location: Portland, OR Posts: 10,841	How to figure out gph rating? I'm assuming it would be easy to calculate the gph of a hob overflow, but I'm not sure how! Anyone know how to figure his out? __________________ TAKE...LUCK!!!

10/21/2015, 04:43 AM	#2
Ron Reefman Registered Member Join Date: Jul 2009 Location: Cape Coral, FL Posts: 10,431	How about putting a container, say a 1 gallon milk bottle, at the outlet of the drain. Time how long it takes to fill. Say it takes 1 minute, then you have 60gph. If it takes 10 seconds you have 6gpm which is 360gph. If the time it takes to fill a 1 gallon container is too short for timing accurately, try a bigger container, like a 5 gallon water jug. The math isn't that hard. __________________ The good thing about science is that it's true whether or not you believe in it. (Neil deGrasse Tyson) Visit my build thread http://www.reefcentral.com/forums/showthread.php?t=2593017