What’s that pink stain in my toilet bowl

 I had a conversation with a Union Bay resident that asked about the pinkish stain that appears on plumbing fixture outlet drains such as the toilet(water closet) and sink drains. My first thought was the chlorine in the water, then I decided to find an answer.

Toilets often develop a pink or slightly orange ring around the bowl right at the water line, especially if the toilet is rarely used. It probably isn’t rust or a mineral. The bad news is that slimy, anaerobic bacteria called Serratia Marcescens cause this ring

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.

Why there is a pink ring in their toilet bowl or evidence of the pink discoloration elsewhere and what can they do to get rid of it. Often they are concerned that something must be in the water which is not the case and nothing to fear. However, the pink ring that develops at the water line in the toilet, around drains, in the tub/shower area, in bathroom drinking cups, and even dog bowls is actually caused by airborne bacteria known as Serratia marcescens. The airborne bacteria thrive in moist environments, which is why it is commonly found in bathrooms.

Karen’s best results for removing stain, vinegar and two drops of Dove dish detergent and a soft scrub brush another is mix a paste of baking soda and vinegar and an old tooth brush…

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