Chrisjet-At first i wanted to drill it but my parents would not let me. So then i did not care cause at first did plan to have the sump. Now i want one but i don't want to do. Now the tank is up and running so i don't want to drill. I don't want to risk it cracking. And i don't know what sides are tempered.
Roundman- That site is why i wanted to start a sump.