Having a water storage tank freeze can be a large issue, not only for the product that is inside the tank, but for the tank itself. Water storage tanks are equipped with two different types of systems for mixing the water within the tank. Each system succeeds well within their proper environments.
Passive systems are hydrodynamic mixing systems and other jet aeration types of systems. These systems create water movement only during the filling process. They are ineffective with preventing ice buildup in cold climates.
Active systems are pulse hydraulics and solar. The active systems are reactive because they can be programmed to respond to water system needs as season weather moves in and out as well as water quality variants dictate. However, only the most powerful active mixers can prevent ice buildup all winter long.
The bottom line is that if the environment is just right, moving the water alone is not a guarantee that the top portion of water is not going to freeze. The goal then is to minimize the tank damage from ice buildup in extreme cold climates. Ice can damage the controls, the interior or puncture a wall before you realize you have an ice buildup problem in your tank.
Traditional methods for reducing ice formation inside water tanks have been expensive, difficult and only partially effective.
When searching for a solution for preventing ice buildup inside a storage tank, the most important thing to search for is uniformed heat. To properly prevent ice buildup you need to maintain the same temperature at the bottom of your water tank, as you do at the top.