Well.. Thanks for the input. I decided to leave a good size arch so that air can get in and help dry it out, and hopefully if it goes in, it will come out.. It didnt before. There were two seams that varied between 1/8 to 1/4 along the sides of the floor that were forced to drain into a sealed compartment. I figure that when I redo the floor mid to late summer I can fix this huge flaw... I will probably raise the floor an inch so it spreads the entire width of the boat, and drains to the center at the rear.. Just in front of the motor... For now I got rid of a lot of rotted ply, and hopefully things will drain to the rear better.. Thanks again for your replies.. Big help..!!