One water level in sump.

Discussion in 'General Discussions and Advice' started by Singularity, 3 May 2010.

  1. Singularity

    Singularity Hmmm amper!

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    OK here is the problem, i have a nice sump with space for a large DSB, only problem is the baffles are bit on the short side ie 16cm & 15cm. Dsb should be 15cm and have about 15cm of water flowing over it aswell. Instead of replacing the baffles i just want to run the sump on 1 water level, only down side i can see is the sensitivity of the ATO, anything else ?

    [​IMG]

    Pic of actual sump

    [​IMG]
     
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  3. neil.h

    neil.h

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    Haha Chris. So when is your tank going to be filled now? ;)
     
  4. Singularity

    Singularity Thread Starter Hmmm amper!

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    Fk weet :p

    Still have to level it, and that in itself is going to be a mission, this tank is heavy ! I wanted to get in behind it to do the wiring neatly, not anymore, guess next time :p :lol:
     
  5. viper357

    viper357 Admin MASA Contributor

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    Why 15cm's?
     
  6. FransSny

    FransSny

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    Chris ...at the risk of sounding dof...why not just use 2 strips of glass siliconed to the current baffles to highten them ?
     
  7. Singularity

    Singularity Thread Starter Hmmm amper!

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    ok, roughly 15cm, but still, even if i make the dsb like 8cm it will still just have 7cm of water flow going over it, or do you think that will suffice ?
     
  8. FransSny

    FransSny

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    cause everybody says so ......;)
     
  9. chikaboo

    chikaboo

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    Just have to watch out for sand particles going over into the return chamber and stuffing up the return pumps impeller
     
  10. butcherman

    butcherman Moderator MASA Contributor

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    why not just extend the baffels?
     
  11. Singularity

    Singularity Thread Starter Hmmm amper!

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    This will be absolute last resort :p I dont like silicone, at all !
     
  12. RiaanP

    RiaanP Moderator

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    No reason why not one water level.

    Only issues are, as already noted. The ATU unit will be a lot more difficult to set. Margin for fluctuations a lot closer.

    And sand spilling over either sides to the other chambers.

    Plus
    Skimmer can re-skim same water volume over and over. Need a way to direct its flow away into the direction of the DSB.

    Other that that, no problem.
     
  13. viper357

    viper357 Admin MASA Contributor

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    No they don't. According to the big boys, a DSB higher than 10cm's serves no additional purpose, unless you're using rocks instead of sand. :p
     
  14. Singularity

    Singularity Thread Starter Hmmm amper!

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    OK lets split the difference and say 12.5cm dsb.
     
  15. viper357

    viper357 Admin MASA Contributor

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    No, 10 cm's. :tt2:

    If you are going to have one water level you will need to check at what level your skimmer will perform at, some of them will not perform at very low or very high water levels.

    I wouldn't worry too much about flow over the DSB etc. Fluid dynamics seem to show that the water will still migrate down into the DSB and across to the return pump.
     
  16. PeterL

    PeterL

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    There is a hellava thing...all the information I have been lead to believe thus far has suggested a 15cm (I work in mm so for me 150mm) sand bed, so tell me, I have put my new DSB together on Sunday just past, so before it goes into action properly - do I take 50mm (5cm) of sand out???
     
  17. PeterL

    PeterL

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    Other than me going off track, my thought would be to call up one of your good buddies and get them to stick some silicone between some glass for you and just raise the partitions to what ever height you want - that way, you can hate the silicone all you want and you don't get it all over your fingers. At the same time of doing that, you get to hang out with a good buddy at the same time :thumbup::peroni::peroni:
     
  18. RiaanP

    RiaanP Moderator

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    This 100% depends on the substrate you use. Super fine aragonite, yes 10cm is good. Marbles 1m is good. The coarser, the deeper.

    I prefer 15cm when using playsand.

    Looking for the right article, but got this one instead
    http://forum.marinedepot.com/Topic59558-13-1.aspx
    All the info you need,

    Interesting part
     
  19. RiaanP

    RiaanP Moderator

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    yes, Ron Schimek likes 4 inches, but Anthony Calfo likes 6 inches. Being a man, I prefer 6 inches, it just sounds better :)

    4 inch is about 10cm and 6 is obviously then 15cm
     
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