Which method is commonly used to measure the pH of pool water?

The pH meter is a precise instrument that measures the acidity or alkalinity of pool water directly. It consists of a probe that is immersed in the water, giving real-time, accurate readings of pH levels. This method is favored because it provides immediate results and is less prone to subjective interpretation compared to colorimetric methods. Regular monitoring with a pH meter supports the maintenance of balanced water chemistry, which is essential for swimmer comfort and the effectiveness of sanitizers.

Other methods, such as colorimetric analysis, involve adding a reagent to the water sample and observing the resulting color change, which can be subjective and less accurate. Titration, meanwhile, is a laboratory method that is more complex and time-consuming, making it less practical for routine pool maintenance. Fluorometers are specialized devices used for measuring specific compounds and are not primarily designed for pH measurement. Thus, the pH meter stands out as the most efficient and reliable method for monitoring pool water pH.