Question for the tank guru's

Discussion in 'Beginner Discussions' started by theoholder, 21 Jul 2008.

  1. theoholder

    theoholder jelly Clown

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    Hi, can you please tell me if I can Cut the glass at the back of the tank for overflow, or will this weaken the tank? Tank dimensions : 1200x450x550. The two holes at the back on the pic is what I want to do, silicone two boxes on the glass that will flow into the sump.

    [​IMG]
     
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  3. lanzo

    lanzo Sponsor

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    it won't weaken the tank, but watch out for a crack when cutting, do it slowly and use water
     
  4. Mekaeel

    Mekaeel Moderator MASA Contributor

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    What tool are you going to use to cut that shape?
     
  5. theoholder

    theoholder Thread Starter jelly Clown

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    I was thinking in using a normal glass cutter, the one with the wheel, or will this result in disaster?
     
  6. Hill

    Hill

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    If those cut outs are going to have 90 degree corners then it will weaken the back. The corners need to be rounded.

    I had a second hand tank cut similar to that burst from the 90 degree corners to the bottom corners of the tank. 200 litres of water in 80m2 house not funny at 4am in the morning.
     
  7. Mekaeel

    Mekaeel Moderator MASA Contributor

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    Hell no,I wouldnt trust that cutter at all.Rather take it to a glass company and have them cut it for you.
     
  8. theoholder

    theoholder Thread Starter jelly Clown

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    thank you for the advice, is there maybe someone that's got a glass holesaw to borrow in the jhb area, or where can one buy one off these?
     
    Last edited: 21 Jul 2008
  9. Alan

    Alan Admin MASA Contributor

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    Other wise you could build or buy an overflo box, i have one running on one of my tanks and it has never failed to restart after a power outage.
     
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