The ski locker on my 1998 Seadoo Speedster keeps filling with water and the water just sits there until I suck it out with a shop vac. It's full of grease and grime and bugs and leaves and all sorts of crap so I'm sure there's a drain clogged somewhere. The circle shaped hole at the back of the ski locker is clear, so there must be a second drain back behind the fiberglass that is clogged. Any advice on how to find and clear it?