new cube build 800x800x700

Discussion in 'Large Tanks' started by Wiley, 8 Oct 2013.

  1. Wiley

    Wiley

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    Started building my new tank. 15mm rimless black silicon with a close loop flow design.
     
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  3. RiaanP

    RiaanP Moderator

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    nice size cube.

    Just keep in mind that closed loops do have a few negative aspects. Cannot easily change the direction of flow once completed. And the pumps do use more power than powerheads. A good quality pump, plus ballvalves plus PVC fittings bulkheads and all, will cost the same as a MP10. Even with a 12000L/h DC pump, you still will need more than one pump to give enough descend flow. If you split the line in from pump to 2 outlets, you got a 6000L/h pump BEFORE taking back pressure into account. Most likely will be in the region of 4000 maybe up to 500oL/h (if lucky) per outlet. So that is why I say 2 pumps and 4 outlets. Also DC pumps deliver less when there is back pressure. Part of its features to use less power when throttled. So I doubt if you should use DC pumps at all. Water Blasters is the same price about as Vortech MP40.

    My big tank had a closed loop on it. 1.5 by .75 by .75 Basically double what you got in mind. I had a closed loop. Using 2 Reeflow Super Dart 13500L/h pumps, with 4 outlets. Flow was good for softies. Same tank runs now with 2 * MP40. A lot better.
     
  4. Nemos Janitor

    Nemos Janitor

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    Riaan, technology is changing. I still prefer closed loops above prop pumps just like I prefer denitrators above DSB.

    Nothing wrong with a closed loop design bud. Just needs to be planed in conjunction with your aqua scape.
     
    Last edited: 8 Oct 2013
  5. Ruberto Frazao

    Ruberto Frazao Sponsor

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    @Wiley sterkte met die bou van jou tank... as n lekker root return pomp opsit behoort jy nie probleme te he nie... jy kan altyd later
     
    Last edited by a moderator: 26 Nov 2015
  6. Ruberto Frazao

    Ruberto Frazao Sponsor

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    @Wiley sterkte met die bou van jou tank... as jy n lekker sterk return op sit behoort jy nie probleme te kry nie.... jy kan ok altyd n etra wavemaker by sit as dit regtig nodig is...
     
    Last edited by a moderator: 26 Nov 2015
  7. RiaanP

    RiaanP Moderator

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    yes me too. But the cons is just not in the favour of closed loops on bigger tanks.

    Agreed, there are other advantages to a closed loop compared to having pumps in the tank. Like aesthetics. No wires in the tank. Can do it more anemone safe.

    But in today's electricity concious times, we have to keep the power consumption in mind. The DC12000 pump at full blast is 85W. Depending on setup, if split into 2 lines you not get 6000L/h per outlet after all the back pressure due to bends etc in the pipes. A Vortech MP40 at full blast is 28W delivering 15000L/h. Doubling up on both, and you got 170W for 2 DC12000 pumps VS 56W for 2 MP40.

    Taking into account that these will run 24/7. And the Vortech already have a night mode where it will use less power. At the end of the year, it is a big difference.

    Closed loop can work for smaller systems. But my opinion, not for big tanks. Unless you got Ocean Motion devices that can redirect the flow to different outlets. Pity they are not that cheap or freely available in SA.
     
  8. Wiley

    Wiley Thread Starter

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    Thanks riaan. Im building a center piece so all 4 sides will be clear. Ill post some pics tonight.
     
  9. devesh.r

    devesh.r

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    Tamto to watch your bull, all the best.
     
  10. Wiley

    Wiley Thread Starter

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    Thanks bud.
     
  11. 2balive

    2balive

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    Goodluck with your build.

    I still have an Ocean Motion 4way that I have kept for my tank, got to choose between that and my Tunze Controler.
     
  12. Wiley

    Wiley Thread Starter

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    [​IMG]
     
  13. Wiley

    Wiley Thread Starter

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    how stupid do I wanna be. thanks bud
     
  14. Wiley

    Wiley Thread Starter

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    [​IMG][​IMG]
     
  15. Wiley

    Wiley Thread Starter

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    oky so by tomorrow ill start filling it. :thumbup:
     
  16. Wiley

    Wiley Thread Starter

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    No leaks everything running smooth :thumbup:
     
  17. Wiley

    Wiley Thread Starter

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    After almost a year im now starting the tank.
     
  18. RiaanP

    RiaanP Moderator

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    wow, I know they say you should take your time, but you are overdoing it... :lol:
     
  19. Daryl Norton

    Daryl Norton

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    Awesome, also building up a cube at the moment. Love it.
     
  20. Wiley

    Wiley Thread Starter

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    Hahaha riaan I moved 2 time the past year. Didnt want to start till im into my new place. Finally im in my own place so the build can get done now.
     
  21. shiks

    shiks

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    Awesome progress there with the tank. ...good luck with the build
     
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