Need overflow help

Discussion in 'Filtration, & Other Equipment' started by Romitaz, Apr 9, 2006.

  1. Romitaz

    Romitaz Black Perc

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    What is the best external overflow for a 55 gallon tank with a 29 gallon sump?
     
  2. Kirk_M

    Kirk_M Chevron Tang LARC Supporter

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    Check out http://www.lifereef.com. Supposed to be the ONLY external overflow that never loses its suction.
     
  3. Travis

    Travis Toadstool Leather Coral

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    LR's Overflow boxes don't look much different from any other U-Tube style overflow box.
     
  4. Kirk_M

    Kirk_M Chevron Tang LARC Supporter

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    Travis,

    I thought the same thing. I don't know what it is about the LR design, but, Jeff's website states that in 22+ years of making these overflow boxes, NOT A SINGLE ONE HAS BEEN REPORTED TO HAVE FAILED TO RESTART after power loss.

    I have no clue as to why or why not... :roll:
     
  5. Travis

    Travis Toadstool Leather Coral

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    I'm running a U-tube that is the exact same design and I have NEVER had a problem with the syphon breaking. I think it has something to do with those baffles in the back. I've seen some OFBs and they didn't have any baffles. I would think that they would break syphon when the pump gets turned off.
     
  6. Romitaz

    Romitaz Black Perc

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    Okay, I'm going with the lifereef. Now, what is the best size? The 600 or the 1400 dual? Also, what would be a good sized return pump for this set up?
     
  7. Travis

    Travis Toadstool Leather Coral

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    My tip-of-the-day would have to be to run only a little bit of waterflow through your sump. That way it reduces the amount of bubbles and also reduces the amount of noise coming from the tank.
     
  8. Kirk_M

    Kirk_M Chevron Tang LARC Supporter

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    I'd think the 600 gph should be adequate...Match it with a 600 gph pump, like an Eheim 1260 (635 gph @ 0ft head), and you'll probably be fine. How far from your sump to the rim of the tank? If you're at about 4 feet, the Eheim should NEVER overpower the u-tube's drain rate... Get your tank flow from a recirculating pump on a closed loop, or from a Tunze stream, rather than from your return pump. A good slow flow from tank to sump will enhance protein skimming, and, nutrient export to your refugium, if you run one.

    HTH,

    Kirk
     
  9. Romitaz

    Romitaz Black Perc

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    Sump to tank top is 5 feet. I can't drill this tank so unless I run a loop over the rim, I may have to use internal powerheads. It has a Seio 1100 on it right now.
     

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