Sump flow...

Discussion in 'General Equipment, Hardware, Filtration' started by Reefer805, Nov 3, 2017.

  1. Reefer805

    Reefer805 Well-Known Member Build Thread Contributor

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    Sitting here wide awake crunching numbers, flowrates, and head loss!

    29dt
    20sump

    What flowrate do I want going through sump?
    My flow rate in the dt is over 10x.
    I’m talking about the flowrate going through the sump to facilitate the best filtration?
    I’m thinking 29g times 5= 145gph?
    Or 29dt +20gsump=50 times 5=250gpg?

    Return will be 4 feet head, with a three pipe manifold for GFO, Carbon, and future use.
    Please help?

    F2028F77-4279-46CB-894A-4E8FDE932CF8.jpeg
     

  2. fishbox

    fishbox Well-Known Member

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    I believe 5-10 times the display volume is the general rule of thumb. Let me ask what kind of overflow do you plan on using? The reason I ask you this is because I think I remember reading people having issues on start up with Bean Animal style overflows if the flow wasn't enough.
     
  3. fishbox

    fishbox Well-Known Member

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    Nevermind I see the Overflow in the picture now. For whatever reason the picture wasn't showing up at first
     
  4. Cronicreefer

    Cronicreefer Well-Known Member

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    I'd go with somewhere around 200gph flow through the sump and since you are using a ball valve on the return, you can always adjust it if you feel it is too strong. I use the same overflow on my tank and just to save you some plumbing, you don't need a ball valve on the intake to the sump unless it is something you desire.
     
  5. McArcher

    McArcher Well-Known Member

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    If it's a single pipe return, I would always leave the valve open.
     
  6. Reefer805

    Reefer805 Well-Known Member Build Thread Contributor

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    Bump
     
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