I am a new sailor. Just got an AMF Puffer. It was not sailed for 3 years, sitting outside in MN. I sailed for the first time yesterday and found it's taking water in the hull. I had the hull hole plugged. Is there anything I should know about this boat before I flip it over to look for cracks or seems where water is getting into the hull? How should I go about finding the water entry location? The hull was empty when I went out. After sailing for about 2hrs it took on quite a bit of water. I didn't notice while sailing. Just decided to trailer it to check since it was the first time out.