Hard water is high in minerals such as calcium and magnesium, while soft water is free of those minerals. As water flows from its source to your tap, it picks up minerals along the way. Although hard water is not harmful if consumed, it can negatively affect you and your home in other ways. This includes drying your hair and skin, leaving spot residues on washed silverware and plates, and damaging pipes and appliances as the water circulates throughout your home. Mineral build-up can cause clogs in your plumbing system and result in costly repairs.