Thanks Dave. The boat has spent most of its life in the Chesapeake, mostly in the mesohaline zone (mid level brackish) which has up to 18 ppt salinity. I have someone coming out to see it tomorrow and will let you know what the verdict is. I took a closer look at it and it looks like there was some caulking from a prior owner that was starting to rot out. The layer of clear epoxy (about 1/8" thick) which looks like the original epoxy is brittle and falling out in some spots. So I cleaned out some of the older caulking and uploaded 3 new pictures. It is localized to one small spot on the hull and follows right along the midline from the bottom hull to the upper hull.
