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Old 06-13-2014, 06:54 PM   #11
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What is the pump they are connected to? Is the sump in the stand? I would not have them choked back unless your overflows can't handle the flow.
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Old 06-13-2014, 08:57 PM   #12
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Ok someone told me lower flow into my sump was better. Yes my sump is right belowClick image for larger version

Name:	ImageUploadedByAquarium Advice1402703702.780746.jpg
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ID:	240319 this is my overflow Click image for larger version

Name:	ImageUploadedByAquarium Advice1402703860.483198.jpg
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ID:	240321
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Old 06-13-2014, 09:10 PM   #13
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Sorry Mr X the pump size escapes me ATM.
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Old 06-15-2014, 06:33 PM   #14
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You should find out the pump size. That said, no, you don't need slower flow in the sump. You have a skimmer in there you must feed water to. Your return pump should at least match the flow of the skimmer pump, and any other reactors in there. It also needs to match the overflow box. You need to find out what the gph is on that and match it. Otherwise air bubbles may accumulate in the J tube and eventually cause a siphon break.
That sump is a wet/dry, and that rock should not be above water. You are losing it's denitrifying ability.
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Old 06-18-2014, 08:16 AM   #15
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Thank for the comments Mr X I'll start digging into this week!!!
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Old 07-08-2014, 08:37 PM   #16
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Click image for larger version

Name:	ImageUploadedByAquarium Advice1404862586.968000.jpg
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ID:	242557Click image for larger version

Name:	ImageUploadedByAquarium Advice1404862618.387626.jpg
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Here's the pump info


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Old 07-08-2014, 09:05 PM   #17
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That's undersized for your tank. After head loss it's probably only pushing about 400+ gph. You want something considerably stronger. Something at least twice the gph IMO.
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Old 07-08-2014, 09:40 PM   #18
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Great, thanks for the info. I'll start looking into this week. So your saying I need one rated for 250?


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Old 07-09-2014, 06:47 PM   #19
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No, not 250....more towards 1000 gph. That overflow is probably a 700 gph or higher unit. You can always choke back the pump, but you can't use an undersized pump or it (the overflow) will eventually fail. Save the QO 2200 (as I said earlier, I'm using the QO 6000 on my system) for a spare or to mix water with.
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Old 07-10-2014, 01:57 PM   #20
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Quote:
Originally Posted by mr_X View Post
No, not 250....more towards 1000 gph. That overflow is probably a 700 gph or higher unit. You can always choke back the pump, but you can't use an undersized pump or it (the overflow) will eventually fail. Save the QO 2200 (as I said earlier, I'm using the QO 6000 on my system) for a spare or to mix water with.

Sorry Mr X when I said 250 I meant for a 250 gallon tank. I saw in your previous post the gph you recommended was more than what it have.


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