Appliances are less efficient
Appliances that use a lot of water, such as the dishwasher, washing machine, refrigerator, and water heater all run less efficiently with hard water. In fact, using hard water with these appliances can decrease their lifespan by 30-50%. Hard water is hard on machines just like it’s hard on the other surfaces it has prolonged contact with. Pipes that carry hot water are more prone to corrosion, though it occurs in all pipes hard water flows through.
Limescale and sediment from hard water minerals cause significant problems for water-using appliances. When they have to work twice as hard to do their jobs, their efficiency is reduced, and you’ll eventually see an increase in your energy bills. The problems from hard water in your appliances can result in leaks and reduced water flow. Replacing parts and maintenance calls are common.