Thanks. Before I try the screws, I wonder if I could just put a layer of the epoxy on the inside and outside of the hole? I would hate to drill through when the hole is so small. It's not even a pinhole, it's microscopic! I can't even see the hole, I just see the water drops forming! I still don't understand how a hole developed there... the plastic is solid and about 1/4" thick! Can I seal it with the epoxy or any other substance? (As I said, Flex Seal didn't work. It stays rubbery and porous. I need something that will harden solid.) Thanks again!