Safely Removing An Overflow

[SylvesterGraham]

Hello, I've recently come across a 90 gallon w/ a corner overflow. The outflow is drilled on the bottom of the overflow and drains directly into a sump.

I know I can physically remove the overflow. That won't be too hard, especially w silicone remover. My question is about the safety and stability of the hole. Is it safe to plug that hole w/ a gasket, sealed in silicon, or has the integrity of the bottom glass been compromised without the overflow?

Thanks

 

[thereverendturtle]

The only way to plug the holes safely, is to use bulkheads and pvc plugs. Get the threaded type and use teflon tape and they shouldn't leak.