: I can vouch for that!!! I didn't have holes in my bulkheads and was
: finding that when I put the boat in the cold water while the air
: temps were warm, it would suck air in around the bad seal I had
: on my hatch coaming!!! Of course, if you had any water sitting
: around the rim, it , too, would get sucked in. And I was
: wondering why my hatches were leaking!!!

: Sean

I was wondering why I didn't have the same problem with my kayak then i realised the buoyancy chambers are foam-filled. Wouldn't that be a simpler solution? The insulating foam sheets for house walls is very low density and the gaps could be filled in with the spray stuff . . .