Plumbing
Differences Between Hard Water and Soft Water
Introduction As water flows on bedrocks of limestone, aquifers and soils of the earth, it absorbs mineral salts. These salts comprise of univalent cations, for example, magnesium and calcium ions. Concentration of the cations in water determines its hardness or softness. Water is classified as hard when there is a high concentration of cations in it. Examples of hard and soft water include river water and rain water respectively. With respect to plumbing, differences between hard and soft water include:...