What is a common method to treat cloudy water in swimming pools?

Shock chlorination is a common method used to treat cloudy water in swimming pools because it involves adding a substantial dose of chlorine to quickly elevate the chlorine levels in the water. This process helps to eliminate contaminants, including bacteria, chloramines, and other organic matter that can contribute to cloudiness. By raising the chlorine level significantly, shock chlorination effectively breaks down and oxidizes these particles, allowing the pool's filtration system to remove them more efficiently.

While filtration alone can help with some clarity issues, it is often not sufficient on its own to address the underlying problems that cause cloudy water. Adding algaecide can be beneficial, particularly if algae are present, but it will not effectively address other common causes of cloudiness, such as organic debris or chemical imbalances. Increasing the water temperature may enhance algae growth and isn’t a recommended practice for resolving cloudiness. Therefore, shock chlorination stands out as a direct and effective treatment for cloudy pool water.