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Old 01-01-2004, 07:29 PM   #1
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Overflow Box

When DIYing an overflow, does it matter how big the box is? or just the pipe that goes into the sump? Im doing two overflows, one for a 55 and another for a 25. for the 25 i wanted to to have a 4x4x4 inch boxes and for the 55 8x4x4 inch. will these be large enough if i drilled the appropriate size holes for the water flow? thanks.
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Old 01-01-2004, 09:51 PM   #2
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I think that as long as you can fit the necessary pipe size to handle your overflow, the box doesn't really matter...yuo can just make it to the dimensions you need. I think a 1" PVC pipe will allow approx. 600gph, but don't quote me on that. But anyways, I don't think the box size matters...all I know is that I read the longer the box on the interior, there is more true surface water drawn in, and less subsurface (though only by a cm or so) water. The more surface water, the more DOC is skimmed from the surface by the overflow box. I'm cheap, so I just made the neat little overflow that BillyZ designed. Cost me $25 to build 2 of them at 1¬Ĺ" pipe. =] Hope this helps you out!
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Old 01-02-2004, 01:17 AM   #3
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It does thanks a lot
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