Cyanuric acid (CYA) functions as a stabilizer for chlorine in swimming pools, protecting it from degradation by sunlight. Elevated CYA levels, however, can diminish chlorine’s effectiveness as a sanitizer, potentially leading to algae growth and unsanitary conditions. For instance, if CYA exceeds 100 ppm, chlorine’s oxidation-reduction potential is significantly reduced, demanding higher chlorine concentrations to achieve proper disinfection.
Maintaining optimal CYA levels is crucial for effective pool sanitation and swimmer safety. Uncontrolled high levels can necessitate costly chemical treatments and may require draining and refilling the pool, representing a significant investment of time and resources. Historically, pool maintenance strategies have evolved to better manage CYA, emphasizing the importance of balanced chemical parameters for water quality.