Pipe Thickness

Discussion in 'Test Kits, Controllers, Reactors and Dosers' started by Renannchen, 28 Sep 2009.

  1. Renannchen

    Renannchen

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    ok so now what pipe to use, i can use 2x 25mm fittings or 1x 32mm fitting wich would work the best???? this is the only way it can go so please help.. its for my reef octo overflow
     
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  3. RiaanP

    RiaanP Moderator

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    Rather go for 2*25.
    Flow should be about the same or slightly more that 1*32 but if one got blocked, the other would still go.
     
  4. viper357

    viper357 Admin MASA Contributor

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    In my mind 2 holes/pipes are always better than one, too many snails and hermit crabs get stuck in overflow pipes and cause blockages resulting in floods and tears.
     
  5. lIghty

    lIghty

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    If i'm not mistaken 1 x 32mm will get you much better flow due to the cross sectional area being much greater.... Or am I in need of some sleep?:)
     
  6. Mekaeel

    Mekaeel Moderator MASA Contributor

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    You in need of some sleep.
     
  7. Tony

    Tony

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    Why not 2 X 32mm pipes?
     
  8. Renannchen

    Renannchen Thread Starter

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    2x 32mm pipes will make the overflow box way to big and dont want to waste too much space in my tank, im diy ing the same as a reef octo syphon overflow the unit is already 22cm wide 16cm high and 19 cm b
     
  9. RiaanP

    RiaanP Moderator

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  10. Renannchen

    Renannchen Thread Starter

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    Thax riaan very cool treads, will keep you posted on what im going to do
     
  11. lIghty

    lIghty

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    Ok, let me check.....

    25mm pipe (1.9mm wall thickness) = 2.12cm ID = 1.06cm Radius

    32mm pipe (2.4mm wall thickness) = 2.72cm ID = 1.36cm Radius

    Right?

    Area of a circle is = to [​IMG]

    2.5cm = (22/7)*1.06*1.06 = 3.531cm2 ID

    3.2cm = (22/7)*1.36*1.36 = 5.813cm2 ID

    So 2x 25mm would infact be better than 1x 32mm by 1.214 times....:whistling:

    What a couple of cups of coffee can do for you :lol:
     
  12. butcherman

    butcherman Moderator MASA Contributor

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    errr how much is pie again :p
     
  13. RiaanP

    RiaanP Moderator

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    Espresso should be served in a small cup, not in a jug.
     
  14. JD167

    JD167

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    [​IMG]

    Would a double overflow pipe in the overflow box like this not be a safer option? (Sorry for the bad MS Paint attempt at a demonstration. ) :p
     
  15. lIghty

    lIghty

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    :lol::lol::lol: Well, I guess I'll be online at 3 tomorrow morning if there are any further questions!
     
  16. FransSny

    FransSny

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    Eish .....too much info there
     
  17. Renannchen

    Renannchen Thread Starter

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    HEy, just want to share some pics on my diy overflow....
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]
     
  18. Renannchen

    Renannchen Thread Starter

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