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Old 06-15-2005, 09:59 PM   #1
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What did I learn today?

What did I learn today?

Today I learned not to attempt to drill a 10 gallon tank yourself. I have read sooo many articles and threads on how to drill a glass tank. I was prepared. I had the special (recommended) dremel bits, lots of water for cooling, and hours upon hours of reading on the subject so I could get it right.

It started well enough. I measured and cut off the trim in back. I marked and stenciled all of the holes. And I began to drill. That's when it went sour. I wasn't even through the first hole when it shattered.

So now I need to acquire another 10 gallon tank to try again. I will get this external overflow thing down. It just might take a few tanks in the process.

Anybody out there who can shed a little light on what mighthave gone wrong? The tank has sat dry for a few years. Could that have had anything to do with it?
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Old 06-16-2005, 04:45 AM   #2
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did the glass break up into tiny little pieces or was it like panes of glass.. it might have been tempered.. It should have broke like plate glass.. if it was tiny pieces then that was the problem..
If it was plate glass it was most likely bad luck.. sorry to hear about it though.. Ive read about guys busting 75 gallon tanks this way on other forums..ACK!! If it were me I would get a piece of glass and do it on it then put it into the 10 gallon.. unless the entire tank broke..
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Old 06-16-2005, 08:17 AM   #3
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Some glass companies will drill for you, and in the long run it's probably cheaper.
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Old 06-16-2005, 10:04 AM   #4
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You can get a 10gallon tank for under $10 at PetCo, so I don't think it's worth the time and effort to get a new sheet of glass cut and installed, just to try again.

I agree, it sounds like it was tempered glass, and that requires some pretty specific tools for drilling.
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Old 06-16-2005, 10:11 AM   #5
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I have been reading about drilling glass, as I am going to attempt it in the near future.

From everything I read, it is extremely important to go very slow, do not apply any pressure, just use the weight of the drill, use a low rpm and a good coolant (water, vinegar or radiator fluid).
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Old 06-16-2005, 10:28 AM   #6
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Not many companies will go through the expense of using tempered glass for such a small tank... there's simply no need to add to the cost for such a tiny tank that doesn't require added strength. I'm a bit sceptical if it was an issue of tempered or not. (especially since most of the tempered pieces are on the bottom of large tanks, or sides of extremely tall tanks). I'd be willing to bet that it was just an issue of going too fast, and using too much pressure. If you are still not sure, call the tank company and ask if they installed tempered in their tanks. They'll have the final answer

You need to let the drill bit do all of the work... no need to put pressure or try to rush. I say either get yourself a new tank from a LFS for $10-12, or have a glass shop do the cut for you (which runs about $15 per hole). Good luck!
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Old 06-16-2005, 10:43 AM   #7
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It was tempered glass. Broke up into 10,000 pieces (looked like it anyway). But I am going to try it again. I don't discourage that easily. I have this thing for doing things on my own so the glass shop is out of the question. PetSmart has them for $9.?? around here. Son what's another 10 bucks or so.

I think that my problem was speed really. I was on the lowest rpm. But I was moving up and down with it a little too fast. My fault. Now I have to do it again.
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Old 06-16-2005, 12:22 PM   #8
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Good luck!!

If I ever decide to go drilled... it'll be done in the factory before I get it.
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Old 06-16-2005, 04:54 PM   #9
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Quote:
Originally Posted by mentallylost
I think that my problem was speed really. I was on the lowest rpm. But I was moving up and down with it a little too fast. My fault. Now I have to do it again.
Um...no...you cannot drill tempered glass....that was your problem.
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Old 06-16-2005, 07:04 PM   #10
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I see.

I'll have to find a non-tempered glass tank then.
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