What Causes Spotting?

In order to understand the science behind the EZSpotFree Water System, it is first important to understand how hard water can cause spotting on all types of surfaces:

What is Hard Water and Why Does It Leave Spots?

When water is referred to as ‘hard’ this simply means that it contains more minerals than ordinary water. More commonly found in coastal and mountain areas, minerals such as magnesium and calcium can slowly destroy pipes, appliances, finishes, and holding tanks. Build-up in pipes and appliances due to an insulating layer of calcium and magnesium makes operation inefficient, and as a result can corrode more rapidly, eventually requiring replacement.

When combined with soap, hard water forms soap “curd,” visibly seen as soap scum on glass, finishes, and brightwork. Magnesium and calcium are positively charged ions. Because of their presence, other positively charged ions will dissolve easier in hard water than in water that does not contain calcium and magnesium. The effectiveness of soap is greatly diminished due to the fact that it cannot dissolve, thus creating less cleaning power. These minerals, along with other insoluble contaminants in hard water, actually trap dirt and soap as curd, ending up as spots on surfaces that have been left to dry.