Black Spots in Toilet Bowl Bye Forever | 4 Ways

Black spots in the toilet are the most annoying and awful look. If it is untreated or not removed, you may end up changing the toilet with a new one.

I had the same issue with my Kohler Cimarron, and after tons of failed attempts, I luckily found 4 super ways to get rid of black stains from the toilet bowl and seat permanently.

I hope all alternative methods work well for you as well, and you can remove black specks in toilet bowl. All options are cheap yet effective.

Before getting a direct solution, I want you to know the reasons behind black spots and where they come from so that you can easily close them.

What Causes Black Spots In Toilet Bowl & Where They Coming From?

Black spots directly indicate a dirty toilet and that you have problems with your water and toilet. About 70% of Americans have faced different spots in their toilets, which makes toilets too bizarre.

Toilet speck is a common occurrence, despite the fact that it is an unattractive sight. The great news is that it is simple to erase and but can keep coming back.

So the answer to what causes black spots in toilet bowls is two reasons: one is Manganese Mineral Deposits, and the other one is Black Mold

Manganese Spots in Toilet

Water contains tons of minerals, but the black stains in the toilet bowl at the waterline are formed due to the high levels of Manganese present in the water.

Manganese is the most common mineral that existents in water. However, exceeding the limit can appear as black spots over the sink, under the toilet rim, bathtub, toilet bowl below the water line, or at the waterline.

Although, Manganese spots in the toilet are tough to remove. Meanwhile, you can get rid of my hacks. So stay tuned.

Little Black Spots in Toilet Bowl Due to The Mold

Molds are so annoying and grow mostly in moist, filthy places. Mold generally grows usually in the toilet that is not used often, humid, and dam bathroom.

They do not form as stains, Molds look like little black round, shaped spots under the bowl, the rim. 

Molds also appear in blue color stains.

Molds are grown rapidly, so you can notice the black stains in the toilet may spread large and quickly. Mildew or Molds are dangerous, can cause an allergic reaction.

It is important to know, which is the main cause of your toilet getting stains, both treatments are different, and molds are coming back again and again if you don’t treat them well.

How to Know ” Black spots in toilet bowl below water line or at water line cause by Molds or Manganese?”- THE LOOK TEST

Observe the stains very well. Molds have spores, so they grow rapidly, and the affected area becomes larger within a few days.

Another sign of mold is- that if you treat mold, it comes back again in a week at a double rate.

Because the molds can easily be erased after one wash but can return.

Manganese spots, on the other hand, do not disappear in one wash or after any treatment. If, the stains remain or fade slightly. Also, not come back in a week. It is guaranteed due to the mineral deposits.

How To Clean Black Spots In Toilet Bowl

After identifying the source, let’s begin to erase the black spots from the toilet.

Precaution should take every option

  •  Always open windows or make sure your workplace is well ventilated.
  • Put respirator
  • Wear heavy-duty gloves and goggles to protect skin and eyes.
  • Keep away children, pets, any pregnant lady.

Option 1- How to Remove Manganese Stains From Toilet- USE CREAM MIXTURE OF TARTER & HYDROGEN PEROXIDE

Hydrogen Peroxide and Tartar are very effectively remove Manganese stains from the toilet, toilet bowl, toilet tank.

You Need the Ingredients


Step1- Put the gloves on and make a thick paste of Tartar cream and Hydrogen Peroxide.

Take about one cup of cream Tartar and a quarter cup of Hydrogen peroxide. Mix two ingredients together in a bowl and make a thick paste.

Step2– Apply the thick paste all over the affected areas, which means Manganese specks. Or take a tissue and cover the whole stuff.

Then allow sitting for 15 to 20 mins. 

Step3- After 20 minutes, take off the tissues and gently scrub all over the bowl with a toilet brush.

Step4- Again rest it, like as it is for more than 5 minutes, again brush off.

Step5- Pour Hot water and rinse thoroughly. Flush normally for 2 times. Hot water can remove extra stains and clog.

If it works and remains stains, repeat the process once more. Now you’ll see the sparkle white toilet.

Option2- Get Rid of The Manganese Spots USING OF TRISODIUM PHOSPHATE

Trisodium Phosphate is easily available online, like on Amazon. It also gives effective results on Manganese Black spots.

Trisodium Phosphate is not harmful to the septic tank.

Step1- Take one gallon of water, add 4 tablespoons of Trisodium Phosphate, it available in both liquid and powder forms.

You may use whatever you’ll find. Make the solution.

Step2- Pour very slowly into the toilet bowl. So the water does not flush away.

If you pour the Trisodium Phosphate and water mixture very slowly, the mixture remains in the bowl.

Step3- Rest this mixture for 20 minutes, until then. Avoid using the toilet.

Step4– Gently brush before flushing. Then flush normally. 

Trisodium Phosphate breakdown the lump stains create on the toilet wall. 

Flush twice or three times. Hence no trisodium residue will remain.

Option3- Black Spots Caused by Molds – Remove By STEAM CLEANING 

Step 1: Bring out your cordless vapor steamer and attach the angular nose.

Step 2: Turn on the high-pressure steam cleaner.

Step3: Keep flying the nozzle over the impacted areas.

Step 4: Replace the water with vinegar and spray over the areas.

Step 5: The debris and mold will come out this manner. Continue the procedure until the molds are exposed.

Step 6: Wipe away the excess with an old rag or a dry cloth.

Black Spots in Toilet Bowl Bye Forever | 4 Ways

Option4- Remove Black Molds from Toilet Using Vinegar+ Baking Soda+ Chlorine Bleach Treatment

Vinegar and Baking soda magically exclude Molds stains, either black or white. And Chlorine treatment for killing the spores and preventing further growth of Mildew and Molds.

All items you need for this-

  • Gloves
  • Mask
  • Toilet brush
  • Bleach
  • Baking Soda/ Borax
  • Vinegar in a Spray Bottle


Step1- Clean with a Normal Toilet Cleaner

Put on the protective gloves. Allow the air to circulate by opening all windows. Before beginning the primary procedure, turn off the water supply line and flush once.

Allow the toilet cleaner to run down the drain.

Step2- Baking soda and Vinegar Treatment

Pour a cup of Baking soda or Borax well over the toilet cleaner and distribute it all the way down to the waterline, under the rim.

Using a spray bottle, splash vinegar over the baking soda or Borax.

Allow 30 minutes to an hour for the action to reduce the molds for as full as possible.

Following an hour, carefully scrub the entire surface with a non-corrosive brush.

Leave it for the next 15 to 20 minutes. Turn on the water supply or obtain a bucket of hot tap water and pour it immediately into this.

Step3- Ultimate Step Chloride Bleach Treatment

Take one cup of Bleach and dilute it within 1 gallon of water. Pour all over the bowl, tank, and refill the tank.

Flush continue 2 to 3 times so, no blech remains after that.

Generally, Bleach is not reliable for toilet seals and flappers. Why is a dilution of bleach necessary before using the toilet?

Final Though On Black Spots In toilet Bowl

Black or brown specks are common and appear very often, but untreated can cause permanent damage.

We almost forgot about harassing scrubbing while removing such stains- This will also cause the toilet to become more jagged.

Read More- How to Remove Toilet Rings without Scrubbing 

You know what uneven wall can thrive to bacteria and mold production double. So all are interrelated. 

If you remove black stains, it is not like you only eliminate stains. You may consider all the facts.

Above all are home hacks and natural products, old stains may not go in just one application. 

There are tons of commercial products out there that are not all safe. Choose wisely. I prefer CLR Pro for hard water stains and Clolorx Ultra Toilet Cleansing Tablets for bacteria, including mold. (FROM AMAZON


Q1. Will vinegar remove manganese stains?

Yes. Vinegar can remove Manganese Stains along with Baking soda/ Borax. 

Both ingredients work together and break down the mineral deposits. But I must say, if the stians old enough, the scenario results not satisfy and go for commercial like CLR Pro.

Q2. Why is black stuff coming out of my toilet?

Black Stuff is coming several reasons like- Primary cause is Molds growth or Mineral like Manganese deposits.

The secondary cause is Bacteria.

Q3. What does toxic black mold look like?

Toxic Balck Molds look like more intense black, grow rapidly, and smell earthy and filthy all the time.

Q4. Why does my toilet bowl get dirty so fast?

Your toilet bowl gets dirty so fast after every day clean then the water is hard water and the toilet located moist dump place.

These cause the toilet to develop bacteria and molds.

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