What is the action needed when the chlorine residual is below the minimum level?

When the chlorine residual is below the minimum level, the necessary action is to adjust chlorine addition. Chlorine residual is a critical parameter in water treatment processes, as it ensures that sufficient disinfectant is present to effectively neutralize pathogens and maintain water safety. By adjusting chlorine addition, operators can increase the concentration of chlorine in the water, thereby bringing it back to acceptable levels to meet regulatory standards and ensure public health.

The focus on adjusting chlorine addition allows the treatment process to be more responsive and proactive in maintaining water quality. This adjustment can involve increasing the dosage of chlorine at the treatment facility or modifying the rate at which chlorine is fed into the system to ensure that adequate levels are achieved before the water enters the distribution system.