My Sump - DIY

[kookie_guy]

Originally Posted by molotov

as long as you didn't take apart the outside walls you'll be fine.

Agreed. If you just cut the old silicone from the corners, and left the structural silicone holding the glass together, and then just ran a new bead on the inside, you'll be fine. If you completely tore the tank down and re-assembled it (that's what I'm getting from the original post) then you're better off cutting it apart again, and using proper structural silicone.