Devices designed for measuring the salinity level in swimming pool water, particularly in pools utilizing salt chlorine generators, are thin, disposable indicators. These indicators typically consist of a paper or plastic strip impregnated with chemicals that react to the presence of sodium chloride, resulting in a color change indicative of the salt concentration. An example is immersing the strip in a pool water sample and comparing the resulting color to a chart provided by the manufacturer.
Maintaining the correct salt concentration is crucial for the efficient operation of a salt chlorine generator and the comfort of swimmers. Insufficient salt levels hinder chlorine production, leading to unsanitary water conditions. Conversely, excessive salt can corrode pool equipment and irritate skin and eyes. Historically, methods for determining salinity involved more complex titration procedures. The advent of readily available indicators has simplified the process, allowing for frequent and convenient monitoring of salt levels by pool owners.