What turns public drinking water purple?

There are a few things that can turn public drinking water purple:

* Manganese: Manganese is a naturally occurring mineral that can be found in water sources. When manganese levels are high, it can cause the water to turn purple or brown. This is more common in areas with older plumbing systems.

* Copper: High levels of copper in the water can also cause a purple discoloration. This can happen if copper pipes are corroding or if there are leaks in the plumbing system.

* Dye: In rare cases, the purple color could be due to a dye that has been accidentally released into the water system. This is unlikely, but possible.

* Bacterial growth: Though less common, bacteria like *Pseudomonas aeruginosa* can sometimes produce a purple pigment in water. This usually happens when there is a lack of proper disinfection and maintenance of the water system.

What to do if your water is purple:

* Contact your local water utility: They can test your water and determine the cause of the discoloration.

* Avoid drinking or using the water for any purpose until the issue is resolved.

* Flush your pipes: Run your faucets for several minutes to help clear the discolored water.

* Check your plumbing system: If you suspect a leak or corrosion in your pipes, have them inspected by a plumber.

Important Note: If you notice any changes in your water, including discoloration, odor, or taste, it's always best to contact your local water utility for advice.