drilling my tanks

[jgmartin]

been practicing 4 a month. got it down pat. gonna go 4 it this weekend want a overflo in my tank 4 sump. anyone every drilled a tank?

 

[hmt321]

I have drilled all my tanks but 1

It is very easy:

go slow
continually spray water on it

I like to use canister filters, I drill holes for 2 1" bulkheads and I like to use 1.5" overflows for my drip system, that way I can convert it to a sump if I ever wanted to.