The hole in the bottom of my 4ft 120 acrylic tank has a very slow leak. Was good for a few months. I did not use a bulkhead (against advice) as it is straight down to sump, it’s double reinforced to prevent flex and I was confident this wouldn’t happen. How can I fix it while wet and without draining the tank to dry? The overflow is slightly leaky so I can’t just drain that and dry it.