I have a BB3 that I built some years ago. My son used it last year and didn't take the plug out and it filled with water and sat a long time that way. In the back are where the flotation is it swelled and separated the deck from the sides. After letting it dry out all summer the swelling went down but now I have a crack at the deck and sides. How would you guys recommend to fix this. Thanks for any help you can offer.