Hardness in water is caused by certain salts. The main hardness causing ions are Calcium (Ca2+), Magnesium (Mg2+) and Bicarbonate (HCO3-). These ions or minerals are normally addressed as scale in the water causing scaling of pipes and equipment in drinking water and process water systems. Softening units offer a water purification solution for hard water and lime scale removal. Water Engineering Technologies offers a wide range of water softeners and related equipments for households, laboratories and industrial applications.