Yes waterproof glue and non slip dot vinyl flooring. You ar pulling your floor for a different reason than I but you can likely use the same method. Set your skill saw to the depth of the plywood and cut a hole in the area that is bad. I made multiple cuts till the extent of the tank was exposed. In your case to the extent of the bad stringer. Hopefully its limited to an area that was getting or staying wet and not too extensive.