3) What is the cost and maintenance difference between salt water and chlorine pools?

Technically, both types use chlorine to sanitize the pool. The difference is the salt water systems save on [some] chlorine costs, but these are offset by having to replace the generating cell every 5-7 years. In addition, the salt water is harsh on natural stone, requiring the stone to be sealed. On the positive side, many swimmers claim the salt water is better on their skin. There are many pros and cons for both, so I would recommend you do your homework before deciding which way to go.

---

Three alternatives to chlorine

There are a  number of ways to keep swimming pools clean in addition to traditional cholrine use. Here are some options residents can try.

1. Bromine

Bromine works as a sanitizer but does not oxidize as well as chlorine. Most homeowners rely on a hybrid version known as BCDMH tablets that are typically 66 percent bromine and 27 percent chlorine. Bromine remains stable at high temperatures, which is why it is good for spas.

2. Ionizers

An ionizer is a device that uses a low voltage DC current to send metals into the water, which attracts bacteria, germs and algae. It does not irritate swimmers’ eyes and noses, and chlorine and an ionizer work better together better than chlorine alone.

3. Ozonators

There are two types of ozone generators: ultraviolet light and corona discharge.

3A. In a UV light system, special low-pressure vapor lamps installed on the water return line create ozone to kill pathogens as they float by.

3B. Corona discharge ozone generators can reduce chlorine usage up to 90 percent.