Hard water: Is water that does not produce lather

Hard water is water that does not produce lather with soap easily and contain dissolved salt ions like Cl –, SO 4—, CO 3—, HCO 3– etc., of calcium (ca++) or magnesium (Mg+). For examples, tap water, river water, spring or underground water, sea water, well water etc. Learn the difference between hard water and soft water, how to tell them apart, and their pros and cons. Hard water has a high mineral content, mostly calcium and magnesium, while soft water has a low mineral content. A water filter can remove impurities and chemicals from water, including minerals that cause hardness. Filters can still help reduce limescale buildup and improve water quality. You can also try using moisturizing shampoos and conditioners designed specifically for hard water to protect your hair and skin from further hard-water effects. Hard water is water that has a high mineral content (in contrast with "soft water"). Hard water is formed when water percolates through deposits of limestone, chalk or gypsum, [1] which are largely made up of calcium and magnesium carbonates, bicarbonates and sulfates.