In the Texas Hill Country, where water hardness levels range from 20 -50 gpg, water heaters last anywhere from two to five years. Hard water robs soap's ability to lather and clean. Thus, more soap is needed to do the same cleaning. If you have anywhere near the same results my family has had then you will recognize that the potential benefits are significant. Possibly fewer problems with gum disease, less time at the dentist, and possibly less frequent visits.
Hard water affects pools in several ways.
First, a certain level of hardness is necessary to prevent leeching of plaster. However, the hardness carries with it scale on pool surfaces and possible damage to circulating pumps and heaters. Remember, magnetic water conditioning doesn't remove hard water elements, it just modifies the ability of minerals to produce hard calcite scale. Save on chemicals, prolong the life of pumps and reduce the frequency of draining and refilling. After putting on a magnetic water conditioner, I noticed that the water tasted better.