Throughout the history of swimming pools, different systems and methods have been developed with the purpose to simplify pool chemistry maintenance as much as possible. Until the Pool Prodigy was release, there have traditionally been four main categories of pool systems traditionally used today: chemical dispensers, ozone systems, salt systems, and ionizer systems. When considering the available options for your swimming pool there are several features you should keep in mind. Whether it will work in any climate, if it balances pH, if it is a freshwater system, the cost of ownership, among other items are very important to consider as you search for the best way to maintain your pool.