Has anyone drilled a slightly larger hole in place of an existing hole in glass...
Ive got a 180 gallon reef ready tank with an internal overflow, but the overflow is drilled for one large drain and two 3/4 in returns. I would like to do a bean animal overflow (and run the returns through the back) but don't feel comfortable using a 3/4 emergency drain. So I'm considering drilling out the holes slightly larger to accept either 1 in or 1.25 in bulkheads.
I've drilled glass before, not worried about that, but I'm a little worried about the holes chipping out because the new hole will only be a couple of millimeters bigger than the existing hole.
Here's a shot down the overflow. The middle hole will accommodate an 1.5in bulkhead, the two on the sides will fit a 3/4 in bulkhead.
Thoughts?
Ive got a 180 gallon reef ready tank with an internal overflow, but the overflow is drilled for one large drain and two 3/4 in returns. I would like to do a bean animal overflow (and run the returns through the back) but don't feel comfortable using a 3/4 emergency drain. So I'm considering drilling out the holes slightly larger to accept either 1 in or 1.25 in bulkheads.
I've drilled glass before, not worried about that, but I'm a little worried about the holes chipping out because the new hole will only be a couple of millimeters bigger than the existing hole.
Here's a shot down the overflow. The middle hole will accommodate an 1.5in bulkhead, the two on the sides will fit a 3/4 in bulkhead.
Thoughts?