Mold in Toilet Bowl Keeps Coming Back | ultimate key

Mold notice under toilet bowl rim, beneath the waterline, tank, even behind the tank. How much you have tried but mold in the toilet bowl keeps coming back. Right?

I had the same problem with my Kohler Elliston toilet a couple of years ago, which is a less-used toilet in my house.

In fact, after cleaning. I started using it regularly. Still, unreasonable molds keep coming and make it worse. 

I thought, why does my toilet keep getting mold? While applying everything, finally reaching my magical remedies, Mildew is gone forever, still not grow.

Today you get the permanent solution for Molds and don’t have to waste your time searching for so many hacks.

Read more- What are the main reasons for causing Black mold in the toilet bowl 

Why does Mold Keep Growing in My Toilet Bowl?

Molds are likely grown in a dark, dense, and humid place like a toilet bowl, toilet hinge, walls, sink, bathtub, showerhead, etc.

Mold/ Mildew generally microspores that start to grow when it gets nutrition, not enough sun rays.

When the toilet bowl keeps getting molds, that means the water consists of hard water. While you clean the bowl, the siphon jets not isolate from the fungus.

From there, mold keeps coming back again and again.

Stagnant water is responsible for molds coming again. Filthy water contains a lot of dirt in it. Although, those specks of grime are a nutritious meal for Mildew. 

Rarely or occasionally use toilet affected more from Mildew.

If you’ve Diabetics, then molds grow frequently. In a diabetic patient’s urine carry the extra glucose, and while the toilet is used, the urine brings the glucose mold often originate.

Research shows that glucose or sugar is the foremost source of breeding Molds.

How to Prevent Mold in Toilet Bowl Keeps Coming Back

You may ask, what to do if mold keeps coming back? For a permanent solution to get rid of the mold.

Solution1. Vinegar + Duct Tape for permanent removal of mold in the toilet bowl.

Vinegar is one in all cleaner. From household kitchen sink to toilet stains can remove easily with vinegar.

Ingredients you need –

  • Bucket
  • White Vinegar
  • Duct Tape
  • Angular Wire
  • Brush
  • Baking Soda


Step1- Protection

Shut off the water line to the toilet tank. Flush down all water from the tank. Remove the remaining water by using a rag.

Step2- Dry the bowl and Stick the Duct Tape

Dry the bowl and adhesive the Duct Tape opening the rim jets. You can take a mirror to see more visible.

Step3- Pour the Vinegar

Take a bucket and add one gallon of White vinegar. Then pour the whole thing into the empty toilet tank.

Flush down completely. The vinegar goes down the bowl but keeps by Duct tape.

Leave it for about one and a half hours, or you can leave it the whole night if too much mold forms.

Steps4- Cleaning

Take Baking soda sprinkle all over the bowl and affected areas. Spray vinegar over the baking soda. Make bubbles.

After the time pass, rub the ceramic wall, remove the duct tape.

All fluid comes out from the rim jet. You can see the white vinegar become deep green or black color.

Clean the rim holes with the angular wire.

Step5- Turn on the waterline

Connect the water so the tank refills again and flushes down two to three times.

If possible, repeat the process.

This way at first, you may remove all molds from the inner part of the toilet, then add one cup of vinegar in the toilet tank every 5 days alternative. Vinegar can prevent regrowth.  

Other Alternative Methods to Get Rid of Black Mold in Toilet Bowl

  1. Make 1:10 bleach solution. Spray all over the affected areas and wipe them out.
  2. Pour one cup of bleach into the toilet tank every week.
  3. If possible, try to keep the toilet dry.
  4. Arrange for the sunlight to enter the bathroom. 
  5. Open all windows and keep a good ventilation system. So the air circulates and becomes fresh.
  6. If someone Diabetic uses the toilet, manage another one where mold does not grow.
  7. Consider using a bleach toilet tab.
  8. Switch on the air vent to keep moisture and air circulating at least.
  9. Every time using the bathroom open all windows, the open door help to dry out the room.
  10. Flush whenever used in the bathroom.

Is this same Black Ring and Black Mold Present In The Toilet?

Black ring and Black Mold are almost the same, they are interrelated.

Black ring caused by Calcium deposition and black mold build by Molds.

But Mold more tends to grow where minerals deposition.

Mold can easily clean but hard water stains not easily remove

Read more- how to remove the black ring.

Final Verdict Mold in Toilet Bowl Keeps Coming Back

Cleaning a toilet isn’t a big factor unless certain obnoxious mold appears. My husband and I were both baffled by the moldy issues. 

After experimenting with various DIY hacks and chemical products, the black mold will sometimes disappear and then reappear.

One year back, I used vinegar as an alternate solution day and cleaned our toilets once a week with toilet cleans. 

I’ve been following this schedule for almost a year, and believe me, no black mold has returned.

FAQS1. Can diabetes cause mold in a toilet?

If your toilet once gets mold, and anyone has diabetes, it increases the rate of spread all over the area. But don’t say diabetes can cause mold in the toilet.

FAQS2. What are the black dots in my toilet?

Black dots are more likely from hard water stains. When there is calcium sediment in the water. As a result, black dots occurs.

FAQS3. Is it safe to put bleach in the toilet tank?

No. Bleach is not safe to put in the toilet tank. Bleach can torn out the rubber or seal material.

Meanwhile, you can use Bleach, but 1:10 ratio. 1 cup bleach in 1 gal of water. This solution is not harmful to the toilet.

FAQS4. How long do you leave the vinegar in the toilet bowl?

If, the toilet is clean, as a daily routine. Just follow vinegar, then 10 to 15 minutes are enough.

If you have stubborn rings, you can immerse for overnight or a minimum of one and a half hours.

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