Leaks around a chainplate caused this corrosion. Not seen is the collateral damage to the deck core and the bulkhead the chainplate was attached. Reason to cure your leaks!
This CD will also show you how to properly install ports. Here we see a port taped off and ready for sealant.
We'll show you the best techniques to use, resulting in a neat, great looking installation like this. Best of all, no leaks!
Proper installation of hatches are shown step-by-step
