Well now that I had my tantrum, I did a roughly 7in by 8inch cut out. I took a small mirror and flash light to check out where the leak was. The leak seemed to be at the top of the outlet fitting where it entered the tank. I sanded everything down and wiped with acetone. I applied Dicor to the entire circumference of the fitting where it entered the tank. I will let it set for a week then fill it up and see what happens. Just for clarity the fitting was lightly dripping, Maybe 1/16 of a cup per hour. Where the water was dripping on the plywood there was no damage at all. If the repair holds I will properly fix the sheeting where I cut the access hole.
