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Old 12-15-2004, 02:56 PM   #1
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1" Bulkhead flow rate

Hello,

Does anybody know how much flow will go through a 1" bulkhead fitting via gravity. I am trying to calculate the flow for a refugium but cannot find that info.

Thanks
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Old 12-15-2004, 04:55 PM   #2
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Appx. 600 GPH
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Old 12-15-2004, 05:51 PM   #3
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For a bulkhead, 600gph sounds reasonable. For a siphon, its a bit less (until the pressure on the tank side increases). My 55g has a 1.25" overflow.
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Old 12-15-2004, 06:21 PM   #4
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Don't know if this will help, but here's what Oceanic tells me about flow rate for my 72 gallon bowfront, which I believe has a 1" bulkhead:

"Pumps used in that system typically are 550- 800 gph. You could even run a pump rated a nine hundred something gallons per hour and be fine. The drain is rated up to (safely) 1100 gph."
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Old 12-15-2004, 08:00 PM   #5
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Thanks for the help. That answers my question
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