How to Remove Urine Scale Under the Toilet Rim?

by Kristiyana

When you had a second look at the toilet, did you notice a brown ring under the toilet rim that remained even after scrubbing with a brush? Then it’s probably urine scale. How to remove urine scale? And which home remedies help?

Removing urine scale from the toilet can be a tedious task, but one that is very important for good bathroom hygiene. Urine scale at the bottom of the toilet bowl is often easy to notice, and hence you can remove it quickly. However, there are some places where you wouldn’t even suspect that there are deposits, such as the inside edge of the toilet. Luckily for you, there are some home remedies and simple methods that can effectively remove urine build-up under the toilet rim.

How Can You Detect Urine Scale Under the Toilet Rim?

urine scale removal from the toilet rim which tricks and household means help

Deposits under the edge of the toilet are often not even noticed because they are in a hidden place. To determine if you have this problem, go into the toilet and squat next to the toilet bowl. Then look under the edge. You can also use a small mirror. If there is a brownish ring there, then it is most likely urine scale.

Not sure exactly what urine scale is? I’ll now clarify briefly: This is a yellowish-brown deposit that is the result of a chemical reaction between urine and hard water. Since limescale is always a component of toilet water, the reaction is inevitable and the only solution is cleaning with the right cleaning products.

Also read: How to remove limescale from toilet naturally? Use any of these 5 natural solutions for a spotless toilet!

How Is Urine Scale Formed?

how to recognise urine scale under the toilet rim


The limescale contained in the water combines with the urine in the toilet bowl and forms a solid substance known as urine scale. How to descale bathroom fittings? If the pH value of the water is high, the chemical compound turns into a hard mass, which over time takes on a stone-like shape if it is not removed quickly. The area under the toilet rim is particularly susceptible to urine scale because it is difficult to access and is often neglected when cleaning.

If the toilet is not cleaned regularly, the deposits become more stubborn and require additional effort to remove. To avoid this, you should regularly check the area under the toilet rim for urine scale and act at the first sign of a problem.

Which Methods and Home Remedies Remove Urine Scale?

The key to removing stubborn urine scale is acid. Acidic cleaning agents will dissolve even solid formations if they are given enough time to take effect. You don’t need a special commercial urine scale remover to remove the deposit. Often, even a few well-known home remedies are enough!

Remove Urine Scale with White Vinegar

vinegar in a bottle against urine scale under the toilet rim

An effective remedy for urine build-up under the toilet rim is good old white vinegar. The acid contained in it can dissolve the urine scale and effectively remove it from the toilet bowl.

This is how it’s done:

  1. Put the home remedy in a spray bottle.
  2. First, flush the toilet and use the toilet brush to scrub under the rim to remove the rough bits.
  3. Then rinse again.
  4. Spray white vinegar generously under the toilet rim and let it sit for at least half an hour.
  5. Then take the toilet brush again and scrub off the stains that have already dissolved.

By the time you flush the toilet for the third time, the ugly brown edge should be gone.

Tip: You can also use kitchen paper soaked in vinegar to let the home remedy work under the toilet rim.

The Tape Trick to Remove Stains Inside the Toilet Rim

pouring white vinegar into flushing tank to remove urine scale

To remove stains inside the toilet rim (where the water comes out), you can try this useful trick. To do this you will need vinegar, a dry cloth and strong fabric tape. Then proceed as follows:

  1. Flush the toilet and scrub under the rim with the toilet brush. Then turn off the water supply and rinse again. Now the cistern won’t fill up anew.
  2. Wipe the toilet rim dry with the rag and place tape around the rim to seal it. It is best to stick several vertical stripes instead of one horizontal one.
  3. Pour a bottle of vinegar into the toilet tank and flush the toilet. The vinegar gets into the edge and cannot flow out because of the adhesive tape.
  4. Depending on the severity of the dirt, allow the vinegar to act for at least 30 minutes.
  5. After that, remove the tape, turn the water back on and flush the toilet 2–3 times.
  6. Finally, scrub with the brush to remove any remaining debris and rinse again.

Remove Urine Scale Under the Toilet Rim with Baking Soda

how can you clean urine scale under the toilet rim


The all-rounder baking soda is another effective remedy for urine scale deposits on the toilet rim. But how do you sprinkle baking soda under the rim?

What you need:

  • water
  • bowl
  • baking soda
  • a spoon or soft spatula or sponge
  • toilet brush

Then do the following:

  1. Flush the toilet and use the brush to scrub the rough stains under the rim.
  2. Add baking soda and water to the bowl in a 2:1 ratio (2 parts baking soda, 1 part water) to create a cleaning paste.
  3. Spread the paste under the edge and leave it on for 30 minutes to 2 hours.
  4. Then scrub under the edge again, and only then flush the toilet.
  5. Check whether the urine stone is completely removed and repeat the process if necessary.

Conclusion: Remove Urine Scale from the Edge of the Toilet with Home Remedies

how to clean the toilet from urine scale with home remedies

The most important thing to remove the stubborn deposits of urine scale on the edge of the toilet is to use an acid and let it work long enough. Vinegar and baking soda are the best home remedies for this purpose. Whether you use a spray bottle, kitchen paper or adhesive tape, white vinegar will effectively get rid of brown stains. If you prefer baking soda for cleaning, make sure you mix it with water in the right proportions and make a good cleaning paste. Both methods are effective and will clear your toilet of urine scale. Good luck!

How to clean stubborn black stains’ from toilets ‘instantly with household items? Read about it right here.


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