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Old 12-15-2008, 11:14 PM   #11
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Hey Guys,

I ended up purchasing the Coralife 18watt Turbo Twist UV light because I was able to get it for about $10 more than the 9w version..

My question now is how should I plumb it and what flow rate should I shoot for? According to the directions it can handle like 500gph but their flow chart on the back says only 110 GPH to kill parasites...

I was thinking of plumbing it inline with the return pump from the sump, which is probably 400 something gph (I am getting a new sump in the next 3-4 months that will be larger & have a fuge that will use an extrnal return pump, at which time I plan to run the UV seperatly with it's own pump.)

Is runing the UV in and out of the sump just as effective as running in and out of the main tank??

Thanks,

-TheChad
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90 Gallon Drilled Glass Tank w/ Corner Overflow: 492w (2x 150w 14,000K MH, 2x 96w Actinic CF) Coralife Aqualight Pro | Custom 34x15x15 Sump/Refugium | SWC Skimmer | Coralife Turbo-Twist 6x UV Sterilizer | Maxi-Jet Power Head w/Sure Flow Upgrade Kit | 120lbs of Live Rock | 100lbs of Live Sand
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Old 12-15-2008, 11:38 PM   #12
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That 400 gph is likely too fast for a UV. Read the book that came with it for the matching pump speed. Ecited - - OOps you saisd that already above. I'd suggest the 100 to 120. Figure for the maybe 8-14 inches head loss lifting it up to the UV.

400 gph won't kill anything since it travels the light length too fast.

Running it in and out of the sump with a slower pump is gonna be better IMO. Although I was never sure if it got 100% of the water pumping from one side of the sump to and returning it to the other side was really good. But it's better than that 400 gph I believe. I had one like that once. UV Pump was nearer the overflow input from above. Put the return from the UV on the opposite side of the sump.

Don't know if I helped....
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Old 12-15-2008, 11:55 PM   #13
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Let me ask this, just so I can try to better understand UV watts vs flow..

My thought is having more wattage would allow a higher flow rate to maintain the same effectiveness.. IE 9w kills parasites at a max flow rate of 50gph vs 18w kills parasites at a max flow rate of 100gph (Just completely made up examples)?? Is this correct or am I way off?

Also what pump can ya'll suggest that flows at only 120gph?? All the mag drive pumps I could find were 340gpg+ I would like to use 3/4ID flex tubing. Also where does pressure come into play in flow?

Thanks,

-TheChad
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90 Gallon Drilled Glass Tank w/ Corner Overflow: 492w (2x 150w 14,000K MH, 2x 96w Actinic CF) Coralife Aqualight Pro | Custom 34x15x15 Sump/Refugium | SWC Skimmer | Coralife Turbo-Twist 6x UV Sterilizer | Maxi-Jet Power Head w/Sure Flow Upgrade Kit | 120lbs of Live Rock | 100lbs of Live Sand
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Old 12-17-2008, 11:19 PM   #14
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Well, I bought a pump it's a Quiet One 1200 (Aquarium Water Pumps & Water Movement: Quiet One Pumps)

at 4' Head pressure it will pump about 150GPH, I actually bought it because it was adjustable flow, but I found out once I got it home that if you plan to use it as an external pump, it eliminates the flow controll..

Now my only issue is that the Pump and the flow meter both use 3/4" ID flex tubing, but the Coralife Turbo Twist wants either 1" or 1/2" tubing. So now I have to figure out something for that...

What kind of tubing did you guys that have the Coralife TurboTwist use? Any Pictures?

-TheChad
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90 Gallon Drilled Glass Tank w/ Corner Overflow: 492w (2x 150w 14,000K MH, 2x 96w Actinic CF) Coralife Aqualight Pro | Custom 34x15x15 Sump/Refugium | SWC Skimmer | Coralife Turbo-Twist 6x UV Sterilizer | Maxi-Jet Power Head w/Sure Flow Upgrade Kit | 120lbs of Live Rock | 100lbs of Live Sand
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