building sump + overflow + drilling tank

Discussion in 'I made this!' started by starthy, Sep 14, 2008.

to remove this notice and enjoy 3reef content with less ads. 3reef membership is free.

  1. starthy

    starthy Plankton

    Joined:
    Aug 29, 2008
    Messages:
    12
    ok im am totally new to all of this but have done a little bit of reading
    i plan on drilling my tank '60 gallon'.

    1)what size should i drill ? i read that 1'' will give you a max of 600gal is this correct ? if so what size would i need to drill ? seen i want to turn over my tank 5 times through the sump in a hour ?
    2) where should i drill the hole ? i plan on drilling it in the top right hand corner of my tank , if there a recomended distance from the corner (side and top) to drill ?
    3)I plan on making a internal overflow box how big should i make the box in order to get 300 gal and hour flow ,also how high should i make the overflow level above the drilled hole ?
    4)with the plumbing what is the best pipeing to use ? what size ?


    thanks
     
    Last edited: Sep 14, 2008
  2. Click Here!

  3. IBMGeek

    IBMGeek Montipora Digitata

    Joined:
    Feb 15, 2007
    Messages:
    1,054
    Location:
    Miami,Fl
    What kind of tank you setting up? Corals, FOWLR, Mixed reef, etc..

    1) Make sure you plan for the future. The second thing I regret most about my tank is not doing more holes for a closed loop. So plan everything very good. One 1" overflow will give you maximum 600gph so that would be 10x turn over rate, but remember that your only draining as much as your returning. For example you have a 500gph return pump, then your only going to be draining 500gph even though maximum capacity for overflow is 600gph. Also you can control how much is draining with valves so usually its better to have more overflow capacity.

    2) The hole placement depends on several factors. Were is your tank positioned (back towards wall, Peninsula Tank, Island tank, etc..) If youre doing a closed loop obviously youre going to do many holes placed around the tank.

    Not sure about the distance from the corner but I am guessing the farther the better. Also why not drill on the bottom of the tank? Is the tank bottom glass tempered?

    3)Overall what you want from your overflow is linear inches.

    Gallons per Hour = 300
    Drain and Overflow sizes are calculated as
    Recommended minimum drain pipe diameter = 0.72 inches
    Recommended minimum linear overflow size = 5 inches

    I will pm you the link to the calculator since its on another website.

    4)I think the bigger the better because its harder to get clogged. I have 2" pipe on mine but most use from 1" to 1.5" I think. Also soft plumbing and hose is just preference but I prefer hard plumbing.
     
    Last edited: Sep 15, 2008
    1 person likes this.
  4. starthy

    starthy Plankton

    Joined:
    Aug 29, 2008
    Messages:
    12
    thanks alot for the reply really helpfull is the linear overflow size the length of the overflow ? its 5 inches ??
     
  5. IBMGeek

    IBMGeek Montipora Digitata

    Joined:
    Feb 15, 2007
    Messages:
    1,054
    Location:
    Miami,Fl
    Yeah 5 inches minimum so the longer the overflow the better.