SpidersWeb Posted January 22, 2007 Report Share Posted January 22, 2007 Hey guys, When we put in our 460L tank, we got a chip in the base which caused the base to crack when it was fulling with water. Happened ages ago, but we need to fix it so we can use it. Anyway its only the base thats actually cracked, so it dosen't need to look great, just needs to hold water again. I was thinking of just putting a slate of glass the same length/width as the tank underneath, and siliconing it in place. So my question is, will 5mm glass do this job ok? or will I need 8 or 10mm glass? I've done this before to repair 3ft tanks, and it was dirt cheap to do and worked fine, but I've never done it to a tank of this size in the past, and I'm going to need at a team just to help lift the tank The thinner the glass the lower the cost, and I dont want to pay heaps of money for no point. The existing glass is 10mm, and this extra sheet is just to keep it together and stop water escaping out the cracks (although they will be silconed up on the inside too). Any ideas on what the glass would cost? I dont want to start ringing around for quotes until I know what I'm doing. Tank is 1400x700. Quote Link to comment Share on other sites More sharing options...
sharn Posted January 22, 2007 Report Share Posted January 22, 2007 sorry if i misread but wouldnt you want to put it on the inside on the bottom instead of the outside? cause if its on the outside its got the pressure pushing downwards anyway which could cause it to come loose or something, if its on the inside the new piece is being pushed down and held in place? dunno if it really matters all that much or if i explained it clearly *shrug* :lol: Quote Link to comment Share on other sites More sharing options...
SpidersWeb Posted January 23, 2007 Author Report Share Posted January 23, 2007 Its got bracing on the inside, and the cracks continue underneath the bracing, also I'd need to use lots of small bits of glass rather than a single sheet to get it on the inside (due to bracing up the top). Fixing it on the inside would have been a little bit easier though because I wouldn't need help moving the tank. I really need to get a photo but camera batteries went flat. Whether the glass is ontop of the cracked pain or below, its still going to have half a tonne pushing down I know what you mean, but it'll be fine, it wont slide out, the tank (even empty) is soooo heavy nothing could move even if it wanted to. I can't even lift one end of the tank empty. Also have to check the MDF under it, worried it might not be as flat as I'd first thought :-? Quote Link to comment Share on other sites More sharing options...
Alan Posted January 23, 2007 Report Share Posted January 23, 2007 Definately matters what side you put it on Outside the water will travel the crack to the edge and still leak You need to cut back the inside glue and then cut a piece of glass, same thickness as the original base,. to fit side to side over the cracked base. It does not need to be the full length unless of course the crack has gone lengthwise. The important area for the glue is around the perimeter of the patch. A handy hint is a thermometer-suction cup or similar, helps remove the patch while fitting if needed. Quote Link to comment Share on other sites More sharing options...
SpidersWeb Posted January 23, 2007 Author Report Share Posted January 23, 2007 ohhhhhh now I get it Thanks! Quote Link to comment Share on other sites More sharing options...
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