I had already drilled a hole for a ¾" bulkhead in my new frag tank but decided I really wanted a 1" bulkhead. Figured I could just drill a bigger hole around the old one. All seemed good while I was drilling the larger hole and the hole itself came out nice and clean but, alas, when I removed the template I saw that the glass had cracked. I think it was because I had the tank on end and clamped to a backer board and table top and the backer board might have been uneven. Or it could have had something to do with the fact that I didn't let the tank acclimate to the cold outdoor temperatures before I started drilling. Or both.
Anyone have any experience with fixing a crack like this - short of replacing the pane? I was thinking I could maybe run a bead of silicone along the crack and then silicone a big piece of glass over the crack for structural support.
Anyone have any experience with fixing a crack like this - short of replacing the pane? I was thinking I could maybe run a bead of silicone along the crack and then silicone a big piece of glass over the crack for structural support.
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