40 Breeder Overflow Questions

[FishRN]

How difficult is it to drill install an overflow and plumb a plain Jain petco 40 breeder. I know that I’ll need to find a non-tempered panel before I drill. But I’ve never plumbed an overflow myself and really don’t know where to begin. Any suggestions or advice would be appreciated.

 

[Johnd651]

As long as it's not tempered...

Glass (diamond) bit
Keep it wet
Use the template that came with the overflow
Drill slow
Don't push to hard on the drill