What is a common result of having a total alkalinity reading over 190?

A total alkalinity reading that exceeds 190 ppm can lead to several issues in pool water chemistry. High total alkalinity can contribute to cloudiness in the water, primarily because it can elevate the pH levels, making it harder for chlorine to function effectively. When the pH is outside of the optimal range, it can become more difficult for chemical reactions to take place effectively, leading to the formation of substances that cause cloudiness.

Additionally, when alkalinity is high, the pool's water balance is disrupted, which can also result in precipitation of calcium and other minerals—this further contributes to a cloudy appearance. Maintaining appropriate alkalinity levels helps ensure that the pool is not only visually appealing but also safe and hygienic for swimmers.

In contrast, clear water indicates balanced water chemistry, and while high alkalinity could potentially lead to algae growth or a chlorine smell, these are usually secondary effects or linked to other chemical imbalances in the water. Therefore, the most direct and immediate consequence of having a total alkalinity reading over 190 is cloudy water.