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Old 06-04-2007, 02:40 AM   #40 (permalink)
scolley
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Quote:
Originally Posted by Raul-7 View Post
I have two of them ready to run two OC's on my upcoming tank. From what I've read and asked, the OC work much better with a pressure-rated pump.
Sounds like you are setting up for s SWEET setup!

But I'm not so sure about these needing a pressure rated pump. I say that because I tested the flow of this system with water running through all the plumbing, and with the OC bypassed. The difference was 10 GPH, or less than 3% of a speed drop.

Maybe that changes as the filter gums up. But with a clean new filter, it's just not putting that much drag on the system.
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180g high tech, "generally" low maintenance, planted discus tank
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