Hard water is water that exceeds the permissible standards for the content of dissolved minerals in water, mainly salts containing Ca2+ and Mg2+ ions
Soft water is hard water that has been treated to remove Ca2+ and Mg2+ cations using different methods.
Hard water causes scaling, clogging of water pipes and devices connected to these. With softened water, you won't have to worry about rising electricity bills and high repair costs anymore as your appliances work better, plus your skin and hair will be cleaner and softer. Clothes will be cleaner after washing as well as the cleaning of furniture is more effective.