A group of products which alter the salts of hardness in water thereby preventing them precipitating out as limescale.
Water which contains in solution the dissolved salts of Calcium and Magnesium such that the overall quality of the water is affected.
Limescale is the hard, off-white, chalky deposit found in kettles, hot-water boilers and the inside of inadequately maintained hot-water central heating systems.
The best way to prevent limescale is to have soft water. This means you must either move to a soft water area like Scotland or treat your hard water.
Natural rainwater dissolves chalk which then causes the water to become ?hard?.