Water hardness

From Permawiki
Jump to navigation Jump to search

Water hardness describes the amount of dissolved calcium, magnesium, iron, and other minerals in water. High levels of minerals is called hard water and low levels of minerals is called soft water. Hard water can leave soap scum on dishes and water fixtures, can cause mineral buildups in appliances and pipes, can reduce the efficiency of appliances like water heaters, and can cause erosion and rust on appliances.[1]