Oh I am SOOOO frustrated!!!

[Marlin65]

One more reason I love tempered glass. All my tanks and sumps are tempered.
Maybe consider going tempered on the next tank it is not that much more, 7x stronger and has flex to it.
They will drill the hole before they temper.
Tempered is like heat treated steel they heat it red hot to align the particles and then cool it rapidly with big fans. Think of it as the difference between mild steel and tool steel.