A pool clarifier is a chemical that is added to pool water to help remove small particles that cause cloudiness. Cloudy pool water is caused by a build–up of tiny particles on the walls and floor of the pool. These particles can be dirt, grease, pollen, hair, and even dead skin cells. While most of these particles are too small to be seen with the naked eye, they can still cause the pool water to look cloudy.

A pool clarifier works by binding these small particles together so that they can be easily removed by the pool filter. Pool clarifiers come in both liquid and granular forms, and they are typically added to the pool on a weekly basis. There are many different brands and varieties of pool clarifiers available on the market, so it is important to choose one that is compatible with your pool’s chemical system.

While a pool clarifier is not required to maintain a clean and clear pool, it can be a helpful tool to use if you are struggling with cloudy water. In most cases, a pool clarifier will need to be used in conjunction with other pool chemicals, such as algaecides and pool shock, to achieve the best results.