When is the best time for pool chemical testing?

The best time for pool chemical testing is indeed after heavy rain or strong winds. Rain can introduce various contaminants into the pool, such as dirt, debris, and organic materials, which can affect the water chemistry. Similarly, strong winds can blow in leaves, pollen, and other particles that may alter pH levels and chlorine demand. Testing the water after such weather events ensures that any unexpected changes in chemical balance are identified and corrected promptly, maintaining a safe swimming environment.

Testing before peak swimming hours can be important, but it does not specifically take into account environmental influences that might have recently affected water quality. Testing once a week does not adapt to varying conditions, which can lead to imbalances. Similarly, testing immediately after adding chemicals might not provide an accurate snapshot of the pool's overall chemical status, as the chemicals need time to circulate and mix effectively. Therefore, testing after heavy rain or strong winds is the most appropriate practice to ensure the water remains within safe and optimal chemical levels.