Most of the 50,000 municipal water systems in the United States store treated potable water in water towers and tanks. Many operators rely on mixing via normal cycling of water in and out of the tank to limit water age and deterioration of disinfectant chemicals. This reliance on “passive mixing” is not enough in most cases to prevent thermal stratification, which can lead to a drop in residual chlorine and a resultant growth of bacteria. Continuous mechanical mixing, combined with frequent sampling and periodic chlorine boosting (when needed) maintains water quality and reduces disinfectant use. Active mixing technologies completely mix potable water storage tanks up to 100 million gallons or more while virtually eliminating thermal stratification, sampling inconsistencies, and other tank water quality issues. These technologies have the additional benefits of reduced labor and chemical expenditures as well as providing a means for EPA regulatory compliance.
This white paper is sponsored by Medora Corporation.