Bought a 2000 Sport Craft IB this weekend. Has 4 through hull fittings: 2 live wells, eng cooling, head, and the shaft coming in. Boat is taking o water somewhere. I did a quick check but saw no leaks. Is there a method for checking these out of the water, ie water hose or is the only way when it's in the water? The only one I can't really see is the one to the head. Looking for suggestions to find the water. Thanks, JEC