Salt systems work by converting salt added to the water into chlorine.  Because the system continuously makes chlorine, a much lower level of chlorine can be maintained in the water.  This will make the water more pleasant to swim in. Salt systems have other advantages as well.  The low level of salt in the water makes the water “smooth and inviting” like bath salts.  You won’t ever have to buy chlorine.  The system will continue to make chlorine when you are out of town.