ActivFlo actively reduces the buildup of limescale inside pipework, heating components and appliances. Supplies whole house protection Improves system efficiency. No electrical connections needed. Limescale forms in hard water areas most notably when water is heated. As water heats up its capacity to hold calcium in solution reduces and water can become super saturated with calcium ions. ActivFlo utilises a catalytic method of water treatment, it has no wires, requires no power sources or salt and does not add or remove anything from the water. Inside the ActivFlo is its unique patented catalytic alloy made from a combination of semi-precious metals that react with the water. As the water flows through the ActivFlo the natural conductivity of the water causes the metals to react with one another generating an electric field on the surface of the patented alloy, this electrical field causes the calcium and bicarbonate ions to precipitate from the water forming an insoluble microscopic