
What causes pink stains on the inside of the toilet bowl?
If you’re seeing pink stains on the inside of your toilet, bathtub or shower, it’s usually not a problem with water quality, instead it’s likely the result of airborne bacteria that finds a home on moist surfaces. The film is usually found as a ring that accumulates at the water line in the toilet bowl or on shower doors, sink drains and bathtubs.
What is the pink ring in the toilet?
What Is the Pink Ring in the Toilet Caused By? Someone is scrubbing out a toilet bowl. That pink ring in the toilet just above the water line could be caused by minerals in the water, but, more likely, it's from a colony of the airborne bacteria Serratia marcescens.
What causes pink stains in water?
While some pink stains are caused by overly-metallic water, the most common cause of the colorful, slimy stuff is Serratia Marcescens. What is Serratia Marcescens? Serratia Marcescens is an extremely common type of bacteria, found in everything from soil, to food, to animals.
Why does my toilet bowl have a ring around it?
Toilets often develop a pink or slightly orange ring around the bowl right at the waterline, 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.

How do I get rid of pink mold in my toilet?
Pink mold would not stand a chance against bleach, so a bleach solution of pure bleach and water in a 1:2 ratio would work wonderfully in removing pink mold. Simply mix the solution in a spray bottle, and spray in areas where mold is present. Wipe clean afterwards.
Is Serratia marcescens harmful to humans?
In rare cases, Serratia marcescens can be deadly. Along with other bacteria, Serratia marcescens is a source of hospital-acquired infections, which can happen if a patient's immune system is severely compromised or if the bacterium enters the body with a catheter, respirator or other medical device.
How do you prevent pink water stains?
The Best Ways to Prevent Pink Stains Keep your bathroom dry, and the humidity at its lowest. Turn on a ventilation fan to keep the air circulation running, and open a couple of windows to decrease humidity. Keep your toilets clean as well, to prevent the bacterial colonies from making homes in them.
What is the pink stuff in my toilet bowl?
Serratia Marcescens Bacteria They most frequently observe it in the toilet bowls, on surfaces in shower stalls and bathtub enclosures, on tiles, in sinks and in pet water dishes. A red or pink pigmented bacteria known as Serratia marcescens is thought to be the cause of the pink "stuff".
How do you get rid of Serratia marcescens in the toilet?
To control Serratia marcescens in toilets Clean the bowl thoroughly and spray chlorine bleach into the bowl and under the bowl rim. Also add 1/4 cup of bleach to the toilet tank. Let the bleach stand for 15 – 20 minutes.
What happens if Serratia marcescens is left untreated?
S. marcescens has been shown to cause a wide range of infectious diseases, including urinary, respiratory, and biliary tract infections, peritonitis, wound infections, and intravenous catheter-related infections, which can also lead to life-threatening bacteremia.
Can pink mold make you sick?
It may not be as toxic as black mold, but pink mold has been linked to urinary tract infections, wound infections and gastrointestinal distress. It can also cause various ailments such as lung infection, rashes, allergy, and inflammation, bleeding in lungs, malaise feeling, and other respiratory troubles.
What is pink bathroom bacteria?
The “pink mold” you may find in your shower actually isn't mold, but a very common strain of airborne bacteria that's found throughout the world. The bacteria, Serratia marcescens, cause that pink or even red slime you might find in your shower, toilet bowl, or around other water fixtures.
Can diabetic urine cause mold in toilet?
This is because mold that's growing in a toilet may feed on extra sugar that can be present in the urine of people with diabetes. However, there's currently no scientific evidence that links mold in your toilet with diabetes. The environment of the toilet itself can promote mold growth.
How do you prevent Serratia marcescens?
Keep biofilm at bay. Serratia marcescens is more likely to spread in damp areas, so towel-dry or squeegee the hard surfaces of your shower after every use to remove excess water. Use a water-dampened paper towel to wipe away soap or shampoo residue anywhere it collects in the shower after every use.
Why is mold pink?
The two most common bacteria causing pink shower mold are called Serratia marcescens and Aureobasidium pullulans. These bacteria produce a pigment, known as prodigiosin, that ranges in hue from pinks to oranges to reds.
Why is my water leaving a red residue?
Cause: Typically orange or reddish staining is caused by high contents of iron, which is most common in well water systems. These stains are typically found inside the home around sinks, tub drains, and toilets, and outside wherever irrigation is directed.
What does Serratia marcescens do to you?
S. marcescens bacteria is known to cause a variety of different types of human infections, including: urinary tract infections (UTIs), respiratory tract infections, conjunctivitis, tear duct infections, and keratitis. Although extremely rare, it can also cause pneumonia and meningitis.
How is Serratia marcescens transmitted to humans?
Multiple-Resistant Serratia marcescens It is associated with urinary and respiratory infections, endocarditis, osteomyelitis, septicemia, wound infections, eye infections, and meningitis. Transmission is by direct contact.
Where is Serratia marcescens found in the human body?
It is commonly found in the respiratory and urinary tracts of hospitalized adults and in the gastrointestinal systems of children. Due to its abundant presence in the environment, and its preference for damp conditions, S.
What are the signs and symptoms of Serratia marcescens?
Symptoms may include fever, frequent urination, dysuria, pyuria, or pain upon urination. In 90% of cases, patients have a history of recent surgery or instrumentation of the urinary tract.
What causes pink stains on toilet bowls?
The bacteria that causes these pink stains is Serratia Marcescens, which is found naturally in the environment. The airborne bacteria thrive on moisture, dust, and phosphates. The best way to eliminate the bacteria is to use a bleach-based toilet bowl cleaner. Occasionally flushing toilets that are not used very often can also help reduce ...
Why is my shower pink?
If you’re seeing pink stains on the inside of your toilet, bathtub or shower, it’s usually not a problem with water quality, instead, it’s likely the result of airborne bacteria that finds a home on moist surfaces.
Why is my toilet bowl pink?
It probably isn’t rust or a mineral. The bad news is that slimy, anaerobic bacteria called Serratia Marcescens cause this ring .
How to get rid of pink ring in toilet?
The best way to deal with the pinkish ring is to tackle it in the toilet bowl with chlorine bleach and a plastic-bristled brush. For hard-to-reach areas, try an old toothbrush dipped in chlor ine bleach, being careful of course to wear gloves and protect your eyes from the harsh chemical.
Why Does my Toilet Get a Ring So Fast?
The bacteria is called anaerobic because it does not use oxygen to sustain life. Serratia Marcescens also causes stains in the tub, behind or around the sink faucet, at the bottom of shower curtains, or wherever surfaces are moist or water pools for a period of time. It also feeds off of fatty substances such as the residue of soap or shampoo. This bacteria is present in the air and has nothing to do with the quality or type of water coming out of your tap.
Why is my water red?
Fun fact: the red, pink, or orange color is caused by a pigment produced as the bacteria colonize.
What happens if you put chlorine in a toilet?
Chlorine damages rubber parts in the tank such as the flapper, causing the flapper to deteriorate more quickly. This can quickly lead to a leak into the toilet and an unwanted increase in your water bill!
Why is my shower curtain pink?
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.
What causes pink stains on shower curtains?
The bacteria Serratia marcescens causes pink stains. Click on image for better view. 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, ...
What is the phone number for Henderson Water Utility?
Should you have any further questions, please call Henderson Water Utility at 270-826-2824.
Can you leave bleach in a toilet tank?
Bleach should not be left in the toilet tank for prolonged periods , however, as it will damage the rubber seals and valves inside. Use care with any abrasives to avoid scratching a fixture or surface, which will raise the likelihood of bacterial growth. Clean pet water bowls in a similar manner.
What causes pink stains in toilets?
The Source of Most Pink Toilet Stains. The bacteria Serratia marcescens is familiar to laboratory biologists because it's one of the most common contaminants of petri dishes. It's possible that this pink bacterial is the cause of a feast day in the Catholic church by creating the blood-like red color that Father Peter of Prague noticed on ...
Why is there a pink ring in my toilet?
That pink ring in the toilet just above the water line could be caused by minerals in the water, but, more likely, it's from a colony of the airborne bacteria Serratia marcescens.
How to get rid of pink stains on toilet?
Both bacteria and mineral stains will come back again unless you take steps to control them, and the easiest way to control both at once is to use a toilet bowl cleaner that contains both chlorine and an acid.
How to get rid of stains on a bowl?
Instead, make a vinegar or lemon juice paste using borax as a thickener, spread the paste on the stains and wait overnight.
Why do pink rings look slimy?
While some pink stains are caused by overly-metallic water, the most common cause of the colorful, slimy stuff is Serratia Marcescens.
How to clean pink slime off of a bathroom floor?
Once pink slime has left its grimy mark, you can clean it away with just about any bathroom cleaning solution. We recommend trying a solution of one-part vinegar and one-part water; spray this mixture over the afflicted area and then scrub away with a soft bristle brush. For heavier or more set-in stains, chlorine bleach is usually a surefire way to clean away Serratia.
Is pink water toxic?
While many homeowners fear that the presence of pink residue means that there’s something toxic in their water, the problems posed by the bacteria are mostly cosmetic; in small quantities, Serratia Marcescens is generally thought to be largely harmless to most healthy individuals, though we should note that it has been linked to some infections, including urinary tract infections and pneumonia.
Does Serratia have water?
Once they’ve settled in a damp spot, such as your bathroom, Serratia has everything necessary to thrive – standing water, open air, and the consistent introduction of phosphates and fats thanks to the soaps, gels, shampoos, and human waste products that filter through your bathroom every day.
What are these Pink Stains?
Pink stains show up in different parts of the United States. Lab reults indicate that they are caused by either an airborne yeast or a bacteria called Serratia marcescens that could enter any house in a variety of ways. It can grow easily on wet surfaces and is usually found in toilets, sinks, and tub drains that don’t thoroughly dry.
How to Get Rid of the Stains and Keep Them Away
It is best to frequently clean and dry the affected areas. Bleach or another strong disinfectant can also help to prevent regrowth.
Why is there pink slime in my shower?
However, because chlorine is a volatile compound, if water stands long enough for residual chlorine to dissipate (i.e a toilet or on a shower curtain), the pink slime may develop. People who remove chlorine from their water by the use of an activated carbon filter are therefore more likely to encounter pink slime.
What Is the Pink Slime in My Bathroom?
The biggest misconception surrounding pink slime is that it’s caused by a mold. It’s not.
Why is Serratia marcescens pink?
Since Serratia marcescens forms a pink/red biofilm at room temperature it is also easily confused as an iron-related water quality issue in the water.
What is pink slime?
If you’ve ever noticed pink slime or residue form around your sink or shower, along the rim of your toilet, or even inside your pet’s water dish–you’re not alone. In fact, it’s a very common, but easily misunderstood issue. Here's how to identify and treat Serratia marcescens. While “pink slime” refers to another gross thing in the food world, ...
How long does it take for pink slime to grow back?
Be aware, however: it’s very likely that the pink slime will re-grow. It may be only just a matter of weeks before it reappears.
What is the red pigment that bacteria produce?
The red pigment the bacteria produces (called prodigiosin) has been suggested to have cancer-fighting properties. The exact nature of how it interacts with malignant cells is unclear and the topic is still being studied.
Can you get rid of pink slime?
With a little elbow grease, you can manage the pink slime problem. That being said, you’ll be hard-pressed to eliminate pink-slime forever–so keep some keep some cleaning products handy and know you are in good company.
How to get rid of pink stuff in toilet?
To control pink "stuff" in toilets. Clean the bowl thoroughly and spray chlorine bleach into the bowl and under the bowl rim. Also add 1/4 cup of bleach to the toilet tank. Let the bleach stand for 15-20 minutes.
What is the pink substance in the water treatment plant?
A red or pink pigmented bacteria known as Serratia ...
How to get rid of pink slime?
Once established, the organism usually cannot be eliminated entirely. However, periodic and thorough cleaning of the surfaces where the pink slime occurs, followed by disinfection with chlorine bleach appears to be the best way to control it.
What to do if pink film reappears?
Whenever a pink film starts to reappear, repeat the cleaning and disinfection process.
Can Serratia survive in chlorinated water?
Serratia will not survive in chlorinated drinking water. Serratia marcescens is not known to cause any waterborne diseases. Members of the Serratia genus were once known as harmless organisms that produced a characteristic red pigment.
Can Serratia grow in tap water?
Serratia can also grow in tap water in locations such as toilets in guest bathrooms where the water is left standing long enough for the chlorine residual disinfectant to dissipate. Serratia will not survive in chlorinated drinking water.
Is the blue cake out of the tank?
All right, the blue cake is out of the tank and the problem is solved. No more pink water. As for the filter, I am not sure if it only injects into the bowl and not the tank. It has an in and an out tube and the out tube goes directly into the vertical pvc pipe where the water fills when you flush. I'll be sure to keep an eye on the parts every now and then.
Do blue toilet cakes void warranty?
If your toilet is new, the blue toilet cakes will void the warranty, according to the information I got from Kohler on one of theirs. I have found, too, after they begin to crumble, they lodge under the flapper causing havoc with filling the tank.
Does bleach shorten the life of a toilet?
Any form of toilet cleaner that contains bleach will serious shorten the life of all rubber parts in a toilet .I recommend to customers not to use them.I've seen what they will do and I can understansd why manufacturers would begin to mention them in warranties.
