Aquarius has sprung a leak in the aft closet. I have traced it back to one of the 4 bolts holding the Genoa chainplate in place. Has anyone else had this problem, and are there any secrets to removing these 4 bolts and repairing the leak? I can only see the bolt heads in the closet, and can't get to whatever these bolts are threaded into. Looks like they are somehow threaded into the bottom of the Genoa chainplate which is under the rub rail.