Unlike manually dosed chlorine, but similar to saltwater pools, a mineral pool system uses a blend of naturally sourced minerals to help disinfect your pool. These minerals – usually magnesium, potassium and sodium chloride – dissolve in the pool water before passing through a chlorinator.

Chlorine is the so-called “gold standard” of pool water types, known for its efficiency at killing bacteria. It counteracts contaminants in the water such as sweat, dirt, urine, and sunscreen or body lotions through a chemical reaction. Chlorine can be added once per week, using liquid, tablets or granular chlorine.

Chlorine is the most popular treatment for keeping swimming pool water chemistry balanced because it's highly effective and relatively low cost. Other disinfectants include bromine, ozone, and ultraviolet (UV) radiation.

Chlorine is one of the oldest and best sanitising options for pools – for the one simple reason in that it kills bacteria. Chlorine is used not only in the water that is poured into the pool to begin with, it's also used to clean the pool.