My boat is now one year old, so I took it back to my dealer for some minor warranty issues and, of course, water leakage in the center storage area. Checking in with the service manager after ten days, I learned they were communicating with Yamaha regarding drainage issues. I told them to keep the boat till they fixed the issue. Stay tuned.
I've posted quite a bit about water into the changing room and also notified my dealer. What I discovered was that the dealer knew absolutely nothing about the ways water was getting into the changing room. In fact, one of the routes for water can not even be fixed because it was designed that way:
1 - Water entering through the anchor drain hole - Fixed by me
2 - Coming up through the drain holes in the bottom of the changing room. The drain plugs are not siliconed to the hull - Fixed by me
3 - Water coming in from the front hatches and draining into the changing room - This CAN NOT be fixed. If any water gets into the front storage area, it drains aft and into a small opening on the port side of the changing room, where the batteries would normally be stored for a trolling motor. My belief is the design was for water to enter the storage area for any number of reasons and it has to drain somewhere, right? So, it goes to the route that leads into the changing room, and from there, you can drain it out through the drain plugs.
Again, the dealer is not educated on this. So, you can always put a towel down there near the very front of the changing room to collect the water if you've done the other fixes. The only water that gets in the storage area for me is either fresh water from a wash down, through the pedestal hole, or from fenders that are wet and that's where I store them.
Other than that, there will always be a way for water to drain out of the storage area and into the changing area. It has to otherwise it would just collect and slosh around there, which is not good. Bad design, but good intentions I guess.