Soft water is much better for the plumbing and water-using systems in your house. Hard water may lead to limescale deposits in your pipes, dishwasher, water heater, and other plumbing systems. Scale can build up in pipes and reduce the efficiency of your plumbing systems. It can corrode faucets and showerheads, and cause soap scum on shower doors. It can also damage machines in your home that use water, such as dishwashers, laundry machines, even coffee pots.
Hard water is also less effective for washing dishes, clothes, or skin because it resists the dissolution of soap. Soap and detergent dissolve more easily in soft water, helping it do its job in cleaning and leaving your skin, hair, and laundry feeling softer and smoother.