This spring, I removed relocated, and resealed a lot of the deck hardware using butyl rubber. While I had the hardware off, I also took the opportunity to seal up the balsa core around each hole. I was surprised that most of the holes in the deck weren’t sealed with epoxy–even the ones that were drilled at the factory. Luckily, I didn’t find too many spots where the core was damp.
I also replaced the water-soaked core in the cockpit hatch. I removed the hatch and took it home to work on it.