Address: N/A Miami-Dade County, FL 33002 Phone: (305) 707-0888 Category: Water filter supplier Description: Water very commonly contains hardness elements such as magnesium and calcium, dissolved rock, hence the description of hard water. Soft water is when these minerals are removed through a process known as ion exchange. If you have hard water, you may see staining or scaling build up on your sinks, tubs, showers and clothing; scaling deposits on your glassware; and damage due to scale in your pipes .