There are things to look for to see if you need a water softener. For instance, if you have scaly, white deposits in basins or on fixtures in your bath or kitchen, you need a water softener. Additionally, water spots on glasses and dishes are another sign, especially if these spots don't seem to go away. A water softener will eliminate these hard water spots.
While hard water is a problem, it won't harm your health, but it will harm your appliances and fixtures. Not only can hard water do damage to glassware and leave deposits in sinks and showers, it can decrease the life span of your home's plumbing. Removing these with a water softener is the answer, and the harder your water is, with more calcium and magnesium, the more you will benefit from owning a water softener.