dgaschoDVM

Hey, I know I'm reviving an old thread, but thought perhaps some owners here might see it: What is normally inside (or in between) the hulls? Is there any wood reinforcement or structure? I have one that I've owned for a while, never had a reason to open it up, but I bought it used and "refurbished". I can see through the rear inside drain hole that there is a bunch of sludge and rotten wood chunks in there. I'm planning to eventually open it up, make sure no leaks/repair/seal, clean it out, and put everything back together. Just looking for some tips from some with experience if there's some type of reinforcement or frame that's normally in there that I should plan to fabricate/replace?