Sump too small? Help please

Discussion in 'General Discussions and Advice' started by mornewil, 21 Jul 2011.

  1. mornewil

    mornewil Morne

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    Hi guys i am excited about finally starting setting up the weekend but now my sump looks too small.

    Your advice will be much needed & appreciated.
    Below is a pic of my sump with a diagram of the dimensions.
    My DT dimensions 1500H 800H 700L = 700+ L
    Thanks in advance.....

    [​IMG]

    [​IMG]

    [​IMG]
     
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  3. mornewil

    mornewil Thread Starter Morne

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    sorry 1500L 800H 700W
     
  4. Manic

    Manic Moderator

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    Your sump is not to small but it really depends on what filtration methods you are going to use. For a deep sand bed, yes your sump is too small. If you were to run NP pellets then your sump only needs to be big enough to contain your skimmer, reactors, heaters and return pump.
     
  5. pXius

    pXius

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    @RiaanP Should jump in on the DSB here...

    How wide is the DSB?

    From what I've read so far that size DSB might be to small for your tank.

    Might consider adding a refugem/or BioPellets with some macro algea to eat phos.
     
    Last edited by a moderator: 26 Nov 2015
  6. mornewil

    mornewil Thread Starter Morne

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    its 520x400. thats the only space i can acommodate
     
  7. pXius

    pXius

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    I think you'll be better off to break up some live rock and put it in your DSB area with some macro algae like chaeto.

    And then add a reactor with biopellets OR other alternate filtration methods / Dosing
     
  8. mornewil

    mornewil Thread Starter Morne

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    im actually a beginner and was told the dsb is the best route for beginners.
    So shouldnt i rather just get a bigger sump?
     
  9. pXius

    pXius

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    a bigger DSB will be great, and easy to work with, no running cost as either.

    PM RiaanP with all your info including the strength of your return pump. Very important.

    He'll be able to give you a recommended DSB size.
     
  10. mornewil

    mornewil Thread Starter Morne

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    ok thanks just asked him to jump in on my thread
     
  11. Tremayn

    Tremayn

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    you could also have a remote DSB.. ie a separate DSB. YOu can make it next to you DT, in another room. Personally I feel that is best when it comes to a DSB as you can have a nice big one. A std 4ft tank for a DSB would be nice for that size tank
     
  12. leslie hempel

    leslie hempel Moderator MASA Contributor

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    i personally would forgo the DSB OR plumb a remote DSB if one was wanted, but from what we are learning now we are finding that a DSB is not all its cracked up to be with ill effect in the long term if not correctly serviced..

    i must admit i have never been a DSB fan, and my way of thinking is the less space for dirt to collect the better for the overall system..

    i would research well on bio pellets before going that route.. it still has yet to be proven as an effective stand alone system..

    LR within the display with a good skimmer (like you have) can be suffiecient coupled with regular water changes...

    stock lighty with fish in the begining and see how things progress..
     
  13. RiaanP

    RiaanP Moderator

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    why do this two sumps not match? Did you move the first chamber dividers? See the temperature goody, it "moved"

    First, can you not move or turn the skimmer 90 degrees? With the pump either at the back or the front of skimmer body.

    Do you want macro algae like cheato to be above the DSB? Then you need a method at the return pump side to ensure that it does not move over and gets eaten by the return pump.

    Also, your auto top up will be a problem. You are using the full sump (space above the DSB and return pump and skimmer chamber ) due to your setup for water evaporation adjustment. So any water level change is BIG. Or your ATU have to be setup so fine. 2mm drop in water in your sump will be equal to about
    14.5 mm drop in the return chamber only (if only return chamber was used for evaporation adjustments).

    So make the last divider a lot taller. So that only the last chamber will have level changes.

    First, fill the sump and find the maximum depth the skimmer can stand in to still work. Water level should at the outlet lowest point. Does not look like there is a lot of headroom between the skimmer and tank above it, so you most likely will not be able to lift the skimmer and put it on stands. And to allow for space to get the cup off. Anyway, the first divider must be as high as the skimmer outlet. And move it closed to skimmer after you turned it 90 degrees.

    Second divider should be 10mm shorter than the first. So that allows maximum space above your DSB for one day keeping cheato or a fish that misbehave. Last chamber must just be big enough for you return pump while allowing for 2 days water evaporation without letting the pump run dry. So if, for some reason your ATU fails over the weekend you are away collecting specimens, you do not burn out your return pump. On your size tank, easily 20L for 2 days in the winter water evaporation.

    After these 2 changes, then works out your new DSB footprint.

    And yes, as a beginner, I would suggest a DSB for you. Simplest and cheapest option. You have soo mush other things to learn an to keep you busy.
     
    Last edited: 22 Jul 2011
  14. RiaanP

    RiaanP Moderator

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    And how is that outlet working? Close-up picture please.
    The return line exit point is too low, unless you got a siphon break hole on it. Without breaking the siphon, how will drain a lot of water when the power goes out.
     
  15. mornewil

    mornewil Thread Starter Morne

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    So you i don't need a new sump. can i just do the adjustments as you stated
     
  16. mornewil

    mornewil Thread Starter Morne

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    & what is the outlet you talking bout. the pipe on the skimmer?
    Sorry for my limited knowledge
     
  17. RiaanP

    RiaanP Moderator

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    ok, tank overflow / outlet. Sorry my mistake, not clear enough.
     
  18. RiaanP

    RiaanP Moderator

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    What will the DSB footprint be, if you can do the adjustments. Currently its 520 by 400, and that is 20% of your tank footprint.

    Rechecking the figures, to up it to at least 30%, your DSB needs to be 790 by 400. So you need to reduce the skimmer and return chambers so that you can get that extra 270mm. Return trimmed down to 120mm, implies you need to trim the first chamber by 240mm. So unless you can trim the first chamber, then you need another sump.

    So first check if you can turn the skimmer 90 degrees.
     
    Last edited: 22 Jul 2011
  19. mornewil

    mornewil Thread Starter Morne

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    dont think i'll get that much space by turning the skimmer.

    what if i just add another small tank next to the sump just to house the return pump & link it up with some 50mm pipes to the existing sump.

    I will still only have about a 670x400 dsb. still too small
     
  20. mornewil

    mornewil Thread Starter Morne

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    I'll see what i can do tonight. Thanks I'll keep in touch
     
  21. williet

    williet Look at the shiny LEDs!!!

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    How thick is your sump glass ??? If it is to thin all the extra effort will be lost when the base glass cracks ! It happened to me !
     
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