Specifications include, but are not limited to: Mixers will completely mix the tank to maintain a consistent water temperature and chlorine residual. The mixers will be designed for installation without tank entry, fully submersible and designed for potable water. The mixer will be designed for continuous year round operation, using 120VAC as the power source. The mixer will not have a gearbox and will not require lubrication. Mixers will be bid with 75’ and 250’ long submersible power cables. The mixers will have stainless steel retrieval chains the same length as the power cords. The mixer will be certified to ANSI/NSF Standard 61 and will be compliant with all aspects of the SDWA. The manufacturer of the mixer will have extensive experience in the production of such equipment, and the equipment will be manufactured in the United States.