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Old 08-23-2013, 07:06 PM   #11
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About 6.2 feel total. That be all the piping from pump to the top
Is that vertical or vertical and horizontal?
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Old 08-23-2013, 07:15 PM   #12
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If I have 600 gallons per hour coming out how much am I needing to put back in
As much as you want with out going over that. The overflow will match your return pump up to the overflow's max flow.

If your return pump is pushing 400 gph at the end of the plumbing then your overflow will empty your display at same rate. But if you pump is pushing 800 and overflow is rated at 600 you will be pushing more than it can handle and will overflow the display tank.
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Old 08-23-2013, 07:25 PM   #13
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In other words overflows are rated at max gph capacity not how fast they Normally run at. Their running gph is determined by the return pump and headloss.
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Old 08-23-2013, 07:28 PM   #14
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6 feet? Is the sump in the basement? head loss is determined by upwards lines and elbows (90's and 45's), not any lines parallel to the floor. Water traveling sideways isn't effected by head loss.
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Old 08-23-2013, 08:00 PM   #15
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If that's the case is say 4ft MrX. Ok so I want a slower rate going over the fuge so I believe I'd want less flow. Say around 400
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Old 08-23-2013, 08:39 PM   #16
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If that's the case is say 4ft MrX. Ok so I want a slower rate going over the fuge so I believe I'd want less flow. Say around 400
Go with a mag 7 with 1" output plumbing and you should get between 400 and 500.
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Old 08-23-2013, 08:48 PM   #17
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Sounds good
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Old 08-24-2013, 04:08 PM   #18
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Why do you want a slower rate over the refugium? If you are using a HOB overflow you must size the pump to it, or it will eventually fail on you.
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Old 08-24-2013, 04:30 PM   #19
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I was told that the fuge need slower movement.
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Old 08-24-2013, 04:31 PM   #20
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So after headloss I need a pump that is going to circulate about 600gph
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