Texco;n663167 said:
I ordered a 3/4" and a 1" bulkhead sized drill bit from glass-holes. Any tips or suggestions from those that have drilled before? Someone that has done it would you potentially want to help me do it or am I telling myself it is harder then it is?
I take the bulkhead and a sharpie and mark exactly where I want the bulkhead to be. If you are putting it near the plastic trim pieces of the tank make sure you account for the flange of the bulkhead. Then get a good blob of plumbers putty and build a dam around your soon to be hole, this will keep water on the bit to cool it. Then I start with the drill at a 45 degree angle, aligning the bottom curve of the bit to the sharpie traced location on the glass. Start drilling slow until you have a good start and then begin to slowly rock the bit into an upright position. Once you have the bit making full contact use minimal pressure and let the bit do the work. The less you press down on the drill the less chance you have of cracking the glass. Easy does it. When you are getting close to drilling all the way through you'l see water going through the cut. Make sure you place a towel under your work to catch the falling piece of glass! That would really suck if it fell through and cracked the other side! If you press too hard at the finish you can actually break off the edges of the glass, this will result in a potentially bad connection with the bulkhead, so go super slow.
It seems intimidating, but it is pretty easy once you have done it before. Take your time, lay it all out and triple check your hole locations, and you should be good to go. If you want to drive up to Loveland I am more than willing to help you out if you need it!