Salt Water Chlorination

Also Known As: Salt System, Saline Chlorination, Chlorine Generator

Instead of other chemicals, salt water chlorinators use table salt and a small, harmless electric current to sanitize pool water. When the electric current hits the salt water, the salt is converted to chloride ions and then into chloride gas. This allows a pure chlorine to be distributed throughout the water.

Salt chlorination is not a chlorine-free sanitizer, because the salt is turned into pure chlorine. Therefore, this may not be a good option for those who are allergic to chlorine. In addition, salt chlorinators have high upfront costs and the cells are expensive to replace. Because salt is corrosive, it can be damaging to other metal equipment, so it’s important to check the water chemistry often to be sure that the salt levels are within normal ranges. When the pH rises, muriatic acid can be added to bring it down to optimal levels. In addition, like other chlorine-based sanitation systems, there is a risk of scaling. Regular maintenance of the salt cell is critical to the health of the pool and water. On the other hand, chlorine is delivered at a constant rate, making upkeep less time consuming. In addition, there are no irritating chloramines, so the water is more comfortable for swimmers. Finally, salt is an inexpensive additive that is easy-to-store and handle.