What is oxidation reduction potential (ORP) used to measure?

Oxidation reduction potential (ORP) is a measurement used to assess the ability of a solution to either oxidize or reduce substances, which is crucial in understanding the effectiveness of disinfectants like chlorine in water treatment. In the context of aquatic facilities, ORP is an indicator of how well chlorine is working to sanitize the water. A higher ORP value generally suggests that the water has a greater capacity to destroy contaminants, including bacteria and viruses, which is why maintaining appropriate ORP levels is crucial for ensuring water safety and quality.

Monitoring ORP helps operators determine if the chlorine levels are adequate and functioning effectively, ensuring that any organic matter or pathogens in the water are being sufficiently neutralized. This makes ORP an essential parameter for managing water quality in swimming pools, spas, and other aquatic environments, directly related to the effectiveness of chlorine disinfection.