What Causes Blue Stains in Bathtubs When Using Well Water?

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High iron content in well water can lead to unusual staining, such as a neon blue color in bathtubs. This discoloration may be linked to copper piping, which is a common source of blue stains in water. While copper can cause staining, it is generally not harmful in typical concentrations found in drinking water. However, further testing is recommended to confirm the source of the discoloration and to ensure that there are no other harmful substances present in the water.
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We use well water. I know it is high in iron content. The water stains the bath tub a sort of neon blue color. Not sure if it is only the hot water that does this. Does anyone know what might be in the water that would cause this. Could it have anything to do with the pipes "copper"?
 
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Copper piping is one of the best guesses. Not an absolute certainty without further testing, but a very good guess.
 
If it is just from the copper pipes, then there shouldn't be any cause for alarm right. Is there anything that it could be which is harmful?
 

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