I have a 1980 22 and live here in the hurricane capital of the world. After Wilma blew through to my south ( we caught some of the heavy rains)I didn't think to check the boat. Well, I went out this week and found the boat flooded with 4 inches of water in the cabin. It's clean and dry today. Do I need to check for anything like hidden damage? Is there a drain in the cabin besides the bilge? What can be done in the future to prevent this? Thanks for the help.