I used a small piece of wood with 1 1/2" and 1 3/4" holes drilled in it to start my holes. I clamped it to the tank when I could, other times I used double sided sticky tape, and on one hole I manually held it in place. I poured a little water in the hole to get it started, not alot but enough to keep things wet. The goal here is just to use this to prevent drill travel while starting the hole, and after you have a good groove take it off and set up your standard water damn and drill away.
Edit - PS if I keep starting 'DIY' threads do you think we'll get our forum?
Edit - PS if I keep starting 'DIY' threads do you think we'll get our forum?
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