I’ve been chasing down the cause of water in my bilge for quite a while. I would dry it out, even shop vac it dry, then within a week or so there would be a few inches of water again. I went through checking all of the through hull fittings, fresh water tank hoses, cockpit drains, you get the point. One thing that never really occurred to me was the head sink drain as it’s above the water line. I was under the sink doing something and felt water, hmmm. Turns out fitting for the drain was loose and every time a wave would come by some sea water would get in. Tightened it up and now the bilge is bone dry. This is just an FYI if someone else is having the same problem.