I have a 20 year old I/G pool that is in need of some TLC, a 15x30 w/deep end. The pool itself seems to be a bit of a hybrid. The bottom and stairs are unpainted cement, but the walls are fiberglass panels. There seems to be a leak somewhere in the top 18 inches of these panels because if I do not top it off regularly, the water will drop to that level (well below the skimmer).
What are my options? I am handy and own a pressure washer, so I was thinking I could just drain the pool, acid wash and paint the pool myself with some pool epoxy. But what of the fiberglass walls? Can I use something like Bondo in the panel seams before painting to ensure a good seal?