In many parts of the country, having to remove hard water buildup is a necessity. Our well water is hard (it has a lot of calcium and magnesium in it), plus it has rust and particulates. Even with a softener and whole house particulate filter, over time deposits build up in the faucets and shower heads. I noticed recently that the kitchen and bathroom faucets and the shower head had reduced flow, plus a lot of the water was spraying the wrong direction. It was time for a good cleaning….