Water softeners are designed for just that, making your water soft. Water hardness is caused by minerals such as calcium and lime. Do you ever wonder why your dishes just can’t seem to get clean? Calcium may be the culprit. Dishes are not the only thing that take a hit from hard water. Having hard water could potentially cause hair and skin damage, but that’s not the worst of it. Hard water clogs plumbing which could result in thousands of dollars in repairs.