Sump overview

Discussion in 'General Discussions and Advice' started by Tinus benade, 15 Jan 2013.

  1. Tinus benade

    Tinus benade

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    Please assist me with my sump setup.
    My first chamber( inlet) is my skimmer (800 l).middle section i have a couple of live rock and last chamber pump with heater
    everyone talks about the dsb >is my setup wrong
    (Both my tanks is about 350 l in total
    Tanks is currently running for 17 weeks

    Thanks
     
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  3. RocketRooster

    RocketRooster

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    Lots of people on here swear by DSB.

    Personally, I'm not convinced.
     
  4. Express Reef

    Express Reef

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    Bio Cubes:p
     
  5. RocketRooster

    RocketRooster

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    Tinus - are your parameters out of whack?

    If not, why fiddle with it?
     
  6. Tinus benade

    Tinus benade Thread Starter

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    Then Bio cubes it is read some stories about the product. Will try it out
     
  7. Tinus benade

    Tinus benade Thread Starter

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    No all seems ok , NO3 still there but not to high . only want to be save than sorry
     
  8. leslie hempel

    leslie hempel Moderator MASA Contributor

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    please do alot research before implementing, this will give you some good knowledge of what to look out for should something go wrong ;)
     
  9. RiaanP

    RiaanP Moderator

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    This is your sump

    [​IMG]
     
  10. RiaanP

    RiaanP Moderator

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    first thing, move that heater.

    But due to the design, your whole sump level will fluctuate as your water evaporates. Thereby it will be a very finely tunes Auto top up one day. Your RO added each time is just too much.

    With the current design, it does not matter where your heater is placed.
     
  11. RiaanP

    RiaanP Moderator

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    You have enough space for DSB and refugium in the middle section.

    But the water must run across a DSB, not through it.

    So your options are, to either add 2 extra panels next to the current dividers, to create baffles, 20mm wide, glass all the way from the bottom to as high as needed. As long as the skimmer do not drown. But you can even put the skimmer on a stand. I like the divider to be at least 300mm high. Even higher. The second divider / baffle should be 5 to 10mm lower than the first.

    This change will create different water levels. And your ATU will be better, less RO added each time, and your salinity will be more stable.
     
  12. RiaanP

    RiaanP Moderator

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    Another option is to cut the current 2 dividers out, cut the one 10mm shorter. And place them back. but this time without a gap at the bottom. I would make the return chamber a bit smaller as well.

    Systems evaporate about 10% a week, obvious depending on a lot of factors. But that can give you an idea you much buffer the return chamber must have. At least 2 to 3 days to allow you to go away over a weekend. That is the time your ATU will fail (trust me - mine did that - fell off). So you need 3 days buffer. Take your system total volume * 10% divide by 7 * 3 days.
    That is the water volume you need above the return pump, without letting the pump run dry. On a 300L system that is 12.8L water above the return pump.
     
  13. RiaanP

    RiaanP Moderator

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    space open on the right, add a RO container, can be a small fish tank, plastic drum, or whatever you have.

    And get an ATU. That is the first thing after lights that needs to be automated.
     
  14. RiaanP

    RiaanP Moderator

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    lastly, of the 2 options to change the sump, I would go with the second one. Reason is that your DSB will be about 50mm longer than the first option. Yeah, more work, but more filtration capabilities.
     
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