Pink Stains In Your Toilet Bowl
Each year, a few customers call to ask us about pink stains or residues that occasionally develop in moist areas in their homes. They generally observe this in toilet bowls, around sink and tub drains, on shower curtains or other shower surfaces, and even in pet water dishes. The customer naturally wants to know if there is something wrong with his/her water.
No, a pink residue is not a problem with your water quality, and is not harmful in this situation. It is evidence of bacteria that are common inhabitants of our environment. The most typical of these bacteria is one known as Serratia marcescens.
These bacteria come from any of a number of naturally-occurring sources, such as soil, mulch, dust, and surface waters, and they thrive in an environment that is moist and high in phosphates. More people indicate the problem occurs in the summer months when temperatures and humidity are higher, and especially if windows are kept open for any length of time.
Serratia will not survive in chlorinated drinking water. However, where water stands long enough for the residual chlorine disinfectant to dissipate, such as a toilet in a guest bathroom, or on a shower curtain, the pink color may develop. Customers who remove the chlorine from their water by use of an activated carbon filter may also be more likely to experience the problem.
How Can I Get Rid of the Stains?
Once established, Serratia is difficult to eliminate entirely. However, regular and thorough cleaning, followed by disinfection with chlorine bleach, is the best means to control the organism.
Should you have any further questions, please call Henderson Water Utility at 270-826-2824.
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Welcome to Henderson Water Utility’s Website. This site contains information about Henderson, Kentucky’s Henderson Water Utility, the services we offer, and other information of interest to the community.
The Water and Sewer Commission meetings are normally held at the Bobby Gish Administrative Building located at 111 Fifth Street on the third Monday of each month at 4:30 p.m. local time. Please call 270-826-2421 if you have any questions concerning the meetings.
Henderson is a “Combined Sewer System” community. In the older parts of the city, we have combined sewers that channel both sanitary and stormwater to the wastewater treatment plant when it rains. In newer parts of the city, we have a separate storm sewer system.
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