How To Remove Excess Hard Water Buildup Around 85 percent of American homes* have hard water, so itโs likely that your clients are coming in with heavy, weighed-down hair with hidden mineral buildupโwhich can turn the results of your color services traumatic. Have no fear! Weโre here to tell you how to treat hard water buildup, the steps to bring brightness back to your blondes and pro tips you can't get anywhere else.ย 1.ย Why Hard Water Buildup Can Cause Breakage Removing hard water buildup is especially important for blonde clients: โIf left untreated, you run the risk...