glass thickness

Discussion in 'General Discussions and Advice' started by xtreme, 23 Jul 2011.

  1. xtreme

    xtreme

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    Just filled my frag tank and according to the glass thickness calculator 6mm will be safe with safety factor of 3.5 and yet there is a 5mm bend in the middle.

    tank is 110cmL x 60cmW x water level at 40cmH and now have a bend of 5mm in the middle

    How safe is it to use those calculators? If it safe I don't want bends in the middle and don't want to fit a rim either.

    Now I have to fit a rim on a frag tank lol
     
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  3. leslie hempel

    leslie hempel Moderator MASA Contributor

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    man the calculators are a guidline and IMO theoretical. (no disrespect intended) experience says for that tank to be rimless it should be at least 10mm preferably 12mm

    if waveboxes are to be employed it will reduce the lifespan of a tank by 30% i have read.. so the stronger the glass construction the better...

    this is one area where i would not skimp and definatley go overspec..
     
  4. Manic

    Manic Moderator

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    Those calculators are based on heavily braced tanks and not rimless.
     
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