Why are there pink stains near my drain?

Pink stains may form around sink fixtures, drains, dog bowls and other standing containers of water and at the waterline of toilets. They are usually easily removed with cleaning and consist of a mixed culture of yeast, mold, and/or bacteria which grow well in moist conditions. To reduce the occurrence, you may just need to clean more often, especially in the summer when humidity and warmer temperatures increase microbial growth rates.  For additional information, please visit the Seattle Public Utilities website.

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1. What do I do if my water looks discolored or tastes funny?
2. Why are there pink stains near my drain?
3. What do I do about water leaks?
4. How do I connect new water service to my property?
5. How do I determine Water Pressure and/or Fire Flow?
6. Do I need to call before I dig?
7. How do I turn my water off?
8. Where does my water come from?
9. What is a backflow assembly?
10. Am I a City of Bothell water customer?
11. Where can I find utility billing information?
12. Do I have outstanding utility charges?
13. How often is my meter read?
14. Do I have Tap and Connection charges?
15. Where can I learn more about water conservation?