I launched my '75 C22, on Tuesday on a very quiet afternoon on the Hudson river, several things happened over the next three hours: the drain to the galley got clogged seemingly due to pine needles in the through hull, the galley water tank leaked out, and with the drain plugged, water spread mostly around the hull liner (Keel cable/battery area). The next day I found about a gallon of water in the keel locking pin locker. The pin was (I thought) sealed with fiberglass resin, the locker does not directly connect with the starboard side locker around the galley drain. The question is: is it possible that the water from the tank got to the opposite side or can the locking pin let that much water in or what else?