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Iron

 

Iron water is created when water passes through iron-bearing rocks. Because iron accounts for 5% of all the earth’s crust, it can be found in just about all types of water supplies. It can also be caused, usually temporarily, by water standing in iron pipes. Iron has the tendency to leave stains on sinks, clothing and linens, or it can form scale on pipes and water-using appliances that make water look, smell and taste bad.