What Causes a Cloudy Pool? How to Treat it?

To prevent and treat cloudy water, it's essential to maintain proper water balance, ensure the filtration system is functioning optimally, and practice regular pool maintenance, including skimming, brushing, and appropriate chemical treatment. By addressing these three main causes, you can enjoy a clear and inviting pool all season long.

The top three causes of a cloudy pool are:

Poor Filtration: Inadequate or malfunctioning filtration systems are one of the leading causes of cloudy pool water. A properly functioning filter is essential for removing debris, particles, and contaminants from the water. When the filter is not operating efficiently, suspended particles remain in the pool, causing cloudiness.

Imbalanced Water Chemistry: Water with unbalanced chemistry is prone to cloudiness. The pH level, alkalinity, and calcium hardness all play a crucial role in maintaining clear water. If the pH is too high or too low, the water can become cloudy. Similarly, incorrect alkalinity and calcium hardness levels can contribute to cloudiness as well.

Presence of Algae or Contaminants: Algae growth and the presence of contaminants such as dust, dirt, pollen, oils, and other debris can quickly turn the water cloudy. Algae can bloom rapidly, especially in warm and poorly sanitised water, leading to cloudy, greenish water.