The rotating vanes of a centrifugal pump; its action creates the flow of water. The impeller is shaft-driven by an electric motor.
The water coming into and up to the impeller from the suction lines. These pipes are under vacuum pressure.
An atom, or group of atoms that possess an electrical charge.
An ionizer is a device mounted on your return line, and through which water flowing will receive charged metal ions. Manufacturers may use a copper anode and/or silver. Copper is an algaecide and algaestat, while silver is known for its properties as a bactericide. This electric, limited technology has been replaced by the Vision System.
Usually introduced into the water from iron plumbing or from well water, Ferric Iron can stain surfaces, while Ferrous Iron will turn your water a clear green color.