I live in Alabama and have a 18x36 vinyl pool with a salt water generating system. Both are approximately 10 years old. The control box for the swg is shot and I am not excited about buying a new one. I am looking for an alternative to the swg. I am interested in either a cartridge system like the pool frog or the bbb system. I have zero experience with either. I am interested in how the water for these 2 systems compares to that of a swg system, specifically any irritation or smell issues. I am also interested in a ball park guesstimate of the cost associated with the bbb system, the pool is used a good bit throughout the summer but just by my family(no big crowds). Any help?