On my shower floor, I seem to get a strange pink build-up over time that I
have to constantly scrub away. There are certain areas on the shower floor
where water sits after a shower, and those areas seem to have the most pink
build-up, so I'm assuming it's something in the water that's left over when
the water evaporates.
Has anyone heard of something like this? What is this pink stuff?
There are a few spots where I cannot get the pink stuff off no matter how hard
(The shower floor/walls are not made of tile, but... eh, some kind of hard
plastic? That's my best guess.)
Could be soap, shampoo, or conditioner. Give the after-shower spray a
try--I found most any brand works. Start with a clean shower, then
use the spray everyday. You will have to clean your shower less often
and it will be easy.
in red crayon:
>On my shower floor, I seem to get a strange pink build-up over time that I
>have to constantly scrub away. There are certain areas on the shower floor
>where water sits after a shower, and those areas seem to have the most
>build-up, so I'm assuming it's something in the water that's left over
>the water evaporates.
>Has anyone heard of something like this? What is this pink stuff?
>There are a few spots where I cannot get the pink stuff off no matter how
>(The shower floor/walls are not made of tile, but... eh, some kind of hard
>plastic? That's my best guess.)
Do you use a self-tanning cream? I have found that certain self-tanners
leave a strange almost rose colored residue when showered off.
There is no fluoride in the water where I live - not yet at least.
The pink stuff appears to be some form of mold. I get it where water has
collected in the bathroom around the tub area or sink where it's dripped...in
the bath that doesn't get lots of use, it is sometimes around the water's edge
in the commode.
Bleach takes care of it.
I have had a similar problem and thus a visit from our water company. Our
problem has been caused by dirty water coming out of the taps, but the guy
did say that had it been the pink mould the best treatment for stains was
Miltons sterilising fluid. (used for baby bottles etc). Especialy around
sink taps where you may be drawing off drinking water and don't want to use
Milton Sterilising Fluid used to be water with 16% salt and 1%
hypochlorite (chlorine bleach). Now it has 2% hypochlorite. That's
like 1 part salt, 2 parts household bleach, 3 parts water.
They recommend soaking hands for 20 minutes, so I guess it's easier on
the skin than plain bleach. The pH of salt water is about 7, so I would
expect it to make the bleach work faster while being less caustic. I'll
see if I prefer it to the mixture of baking soda and bleach that the
fruit-packing industry has found so effective.
What's in the bleach? If it's just hypochlorite and water, I can think
of three explanations. First, chlorine bleach harms some plastics; it
might be due to the high pH. Second, without something to lower the pH,
chlorine bleach may be a very slow disinfectant.
Third, it seems to me that bleach with water is hard to rinse away. (It
seems to rinse off better if it contains baking soda.) Maybe they're
afraid that enough would remain to form carcinogens when the milk was
I have this problem, too, and I was also informed that it was caused
by bacteria. It comes right off when I scrub with a little shampoo on
a scrunchy, but reappears quickly. Tends to appear in the jets of my
whirpool tub, and along the edge of the shower curtain.
Questions for you: is this bacteria harmful to my family members? None
of us are suffering from UTIs or pneumonia. Could it cause other
health problems, such as skin infections?
And why does remodeling projects tend to bring this on? My house was
recently remodeled. My previous house never had this problem. Am I to
assume it's something in the air here at our new house, and not
something one of us is carrying on our body?
You have me curious... more info, please, if you have it...
Water with equal amounts of bleach and baking soda may kill the spores
to keep it from coming right back. For a vertical surface, you can also
make a paste of bleach and baking soda.
I once had a recurring problem with black mildew along the bottom of the
bottom channel for my shower door, on the outside. Then I cleaned it
with borax. Light-brown traces of the mildew remained, but it never
grew back. If a surface isn't going to be exposed to lots of water,
minute borax residue may stop microbes pretty well.
It used to be considered completely harmless because most people have no
trouble with it. Some strains are probably worse than others, but this
kind of bacterium is all around us.
Remodeling raises dust that may have been in the walls for example. It
may have blown in through a door or window. Somebody may have brought
it in. High-school experiments with petri dishes show that people
normally carry lots of germs around.
Would you believe people who know me well are constantly commenting on
how little I know? If I argue with them I just get into more trouble.
Many experts agree that the bacteria that causes these pink stains is most
likely Serratia marcescens, a bacteria which is found naturally in soil, food,
and in animals. Serratia, which produce a characteristic red pigment, thrive on
moisture, dust, and phosphates and need almost nothing to survive.
The pinkish film often appears during or after construction or remodeling, when
dust and dirt containing Serratia bacteria are stirred up. Once the bacteria is
airborne, it will seek a moist location in which it can grow. Some people have
reported that the pink residue only appears during certain times of the year,
when their windows are left open for most of the day. This bacteria is present
in a number of environments and wind can carry the airborne bacteria or stir up
dust in which the bacteria is present.
...Looks like they've got it figured out. I've grown Serratia marcescens for
college level microbiology experiments, I can confirm that if it's well fed it
produces an extremely brilliant red pigment.
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