[Todd@Autopia]

You have two options:

Water Softening- This replaces hard water mineral ions with sodium ions (basically a salt exchanger). With a water softener you will may get some light water marks but they are not water spots, just sodium residue that wipes away easily.

Water Softening Solutions


Water De-Ionizing- A water deionizer, such as the CR Spotless removes the hard water mineral ions so that the water is completely clean. This is a more expensive option but one that will leave absolutely no water spots.

CR Spotless Systems