Drilling a tank

[BCOrchidGuy]

I've got two options with my new tank. I can use a glass drill I got a few years ago that worked well for 10-15 gallon tanks but the new tank is 5/8 inch glass. It's not a diamond bit but a steel hole saw type thing but you use a compound/abrasive mixed with water.

Or, second option would be the diamond bits with a dremel tool. I could either drill out the hole for a bulkhead or I could do the overflow type thing in the back of the glass and build an overflow box on the back of the tank.

Any thoughts or opinions would be appreciated.

Doug

[hqgc]

I think it would be better for you to drill out your tank rather than an overflow box. There is always the risk of overflow box failure.
Word of advice = pick up your bulkheads first so you know what size to drill your holes.

[Der_Iron_Chef]

Are you talking about a HOB overflow box or an external overflow?

[Kabong]

I would not reccomend using your current bi on that thick of glass.
Your going to need a lot of water flowing over the area to keep it cool.
So your abrasive compound would keep washing away.
If you dont mind waiting a bit, My best suggestion is to order a proper diamond hole saw bit.
You can get them pretty cheap off ebay
http://stores.ebay.com/THK-Diamond-Tools

[skylord]

You might want to talk to J&L....they told me it's $30 to drill a tank.

[Tangman]

I have had tanks drilled at Crystal Glass in Langley it costs $15.00 per hole