Elevated salinity levels detected by a salt cell indicate that the water circulating within a swimming pool or spa contains a concentration of dissolved salt exceeding the optimal range for the cell’s efficient operation. This condition can arise from excessive salt additions or from water evaporation that concentrates existing salts. For example, if the recommended salinity for a particular salt chlorine generator is 3200 ppm, a “high salt” reading might register 4000 ppm or higher.
Maintaining proper salinity is critical for the effective functioning and longevity of a salt chlorine generator. When salt levels are too high, it can lead to reduced chlorine production efficiency, potential damage to the cell itself, and may even corrode other pool equipment. Historically, pool owners relied on manual testing methods to monitor salinity, but modern salt cells provide real-time readings, improving accuracy and preventative maintenance.