Rusty-orange or black staining on sinks, bathtubs, toilet bowls, laundry, and plumbing fixtures are an indication that your water contains excessive iron or manganese. Drinking water may even have a yellow or orange tinge and taste metallic. Excess iron or manganese in your water is generally a nuisance but should produce no adverse health effects. However, some harmful bacteria require iron to grow, making their removal more difficult while iron is present. Most iron and manganese problems can be treated with a water softener or sediment filter, depending on the type of iron and quantity. 

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Treatment Methods: Water Softener, Chlorination/Filtration