Should be the drain for the locker behind the helm. Mine was set up as a livewell. Too small and wasn't recirculating... Good for shrimp and that's about it.
It just had an aerator style pump in it. You know a little bilge style pump with a spray head on it.. had to fill it with a bucket.
My 91 has the same setup. I use it for tackle storage. The thru hull drain is now hooked up to my on deck live well overflow. The drain works (in both cases) by displacement. Located close to or below the waterline doesn't affect the operation.
OK,As for access, I'm guessin' your layout is similar to Wing's old 200XF so....http://classicaquasport.com/smf/index.php?topic=4360.msg27958#msg27958Scroll down to the 11th pic and you can see the access plate (cover removed, in front of the rod holders, behind the stored seat pedestals). I'd say that was how you get at the drain hose/thru hull fitting. Now's a good time to check its condition.Good luck.
Hmm .. checked it. All foamed up with some form of hard foam. No luck.m.
Quote from: mischmerz on July 12, 2016, 11:46:55 PMHmm .. checked it. All foamed up with some form of hard foam. No luck.m.That would be foam flotation.Access is indeed limited unless you dig it out. Hold that thought. Have you poured water into the compartment and confirmed it comes out the thru hull?