Re: Tuscaloosa tornado sinks my '59 Owens need advice
Hm. Sorry to hear of your troubles.
A consensus seems to be that some plywood patches are in order. What to seal them with, so they seal reasonably well, yet aren't hard to remove. On another thread, someone mentioned that silicone will leave a residue which will interefere with the surface later.
Someone else voted for a latex caulking. I suppose it depends on how long you expect it to be in the water before you can haul it for a proper repair, but that's the way I'm leaning. Give a good overlap on the ply, smear that stuff in there, make sure your pumps are up to snuff and add one or two maybe. That ought to work. Hell, just the ply well screwed without a gasket, and some good pumps would probably work.
So many questions, so little time.