I would be very surprised if the rot was not a result of standing water collecting at the bottom. Even condensation dripping down if it is humid as you say.
My thought would be to cut above the area of rot it with a hole saw, then cut vertically down to the bottom, making a mouse hole. Size everything to remove the rot. Make the mouse hole big enough to work/sand inside. Wash the whole area with bleach to kill any spores. (Careful around diesel) Rough radius the sharp corners, sand the bottom flat and coat the whole thing in epoxy. Paint it white so you can see problems/mole later. If you need to close the hole, make a cover that laps the sides, much easier than fitting a 'dutchman'. (Unless you enjoy that sort of thing as I do). I'd be tempted to leave the mouse hole open to allow it to drain and let the air move. My 33ii has several areas that would (and will) benefit from greater air movement. Dave. From: Patrick Davin <jda...@gmail.com> To: "cnc-list@cnc-list.com" <cnc-list@cnc-list.com> Subject: Stus-List Rot in non-structural bulkhead - thoughts? Message-ID: <CAHixY6Tv=u3TMDg20oPVe=jk6zzbuett2kqqafhzdkcsq1y...@mail.gmail.com> Content-Type: text/plain; charset="utf-8" So I'm doing a lot of projects lately, and was majorly bummed out to find the wall between the engine compartment and the lower foot of the port aft quarterberth has some significant rot. Frustrated because lately it feels like every project I fix, I find a new one. And this will be a big one. Please see pictures here: https://drive.google.com/folderview?id=0BxfHpwssU_6NNVBhbXpEZnhkUE0&usp=sharing As they say, pictures are worth a thousand words. It's a 2-3 foot section of the port engine compartment wall, abutting the storage compartments under the port quarterberth. One thing I'm perplexed on is - how did this happen? There are no leaks dripping onto this area as far as I can tell. The cockpit is above this and it doesn't have any major penetrations on this side. And the top of the bulkhead is solid. Normally when wood rots I expect it to start from the top, where the leak is.
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