I greatly appreciate the feedback and suggestions. :)
I do need to get a set of goggles before making the repair (I don't have any). The tear is in a corner that points into the pool (lazy L shaped pool) a few inches above where it meets the floor of the shallow end. I can't quite reach the tear without dunking my head under water, so goggles would probably be a good idea. I guess cheap goggles would be good enough? Suggestions?