What is the maximum legal level for cyanuric acid in a swimming pool?

The maximum legal level for cyanuric acid in a swimming pool is 100 ppm (parts per million). Cyanuric acid acts as a stabilizer for chlorine, protecting it from degradation by sunlight. While some sources may recommend higher levels for certain conditions, the legal standards typically set a limit to ensure water safety and minimize the risk of potential health issues arising from over-concentration. Maintaining cyanuric acid levels within this limit helps ensure effective sanitation while also preventing complications such as reduced chlorine effectiveness and algae growth. This understanding reinforces the importance of regularly testing and managing chemical levels in pool water to ensure a safe swimming environment.