


Toilet bowl stains can be a real headache. They make your toilet look dirty and can even cause bad smells.
You might struggle to remove these stains, spending too much time scrubbing without success.
If you want a quick and easy way to clean your toilet bowl, we’ll show you practical steps on how to clean toilet bowl stains effectively.
You’ll learn what causes these stains and discover simple methods on how to get rid of toilet stains.
What Causes Toilet Bowl Stains?

Before we get into cleaning, let’s understand what causes toilet bowl stains. Knowing the source can help you choose the best cleaning method.
1. Mineral Deposits
Mineral deposits come from hard water. Hard water contains high levels of minerals like calcium and magnesium.
When the water evaporates, it leaves behind these minerals, which can create yellow or brown rings in your toilet bowl.
Regular cleaning can help prevent these deposits from building up. If you live in an area with hard water, consider using a water softener to reduce mineral content.
2. Rust and Iron
If your water has a lot of iron, you might see reddish-brown rust stains in your toilet. This can happen if you have old pipes or if the water supply has high iron content.
Rust can make your toilet look very dirty. You can reduce rust stains by using a water filter or by flushing the toilet regularly to prevent rust build-up.
3. Bacteria and Mold
Bacteria and mold thrive in damp places, leading to dark stains, especially under the rim of the toilet.
These stains can be unsightly and can create unpleasant odors. Regular cleaning can help keep these unwanted guests away.
Using a toilet brush regularly and ensuring proper ventilation in your bathroom can also help reduce moisture and prevent mold growth.
4. Old Cleaning Products
Sometimes, the cleaning products you use can leave behind stains, too. If you use products that are too harsh or not meant for toilets, they can cause discoloration.
Always choose cleaners that are safe for toilet bowls. Look for products that are labeled as biodegradable and environmentally friendly to avoid harsh chemicals that can damage your toilet.
Types of Toilet Bowl Stains
A proper understanding of the different kinds of stains comes in handy to observe the problem’s roots and apply the best cleaning method. Here are some of the common types of toilet bowl stains:
1. Yellow or Brown Stains
Be on the lookout for these stains around the waterline if you happen to reside in a region with hard water.
Hard water’s high mineral content means that as it evaporates, it leaves behind deposits of calcium, magnesium, and iron.
So, when added together, they form rings of yellowish or brownish hues around the waterline.
2. Reddish-Brown Rust Stains
Rust stains are from iron in the water supply or from old corroded pipes. These kinds of stains can be pretty stubborn to get rid of.
So, you can use a water filter or some kind of rust-removing cleaner to treat it.
3. Black or Dark Green Mold Stains
It’s pretty understandable that mold and mildew find an ideal place for development in damp, dark places with poor ventilation-like under the rim of your toilet.
As time passes, it usually leads to dark green or black stains, accompanied by an awful musty smell.
Ensure good ventilation in the bathroom, frequently flush the toilet to avoid dampness, and use cleaning solutions that prevent mould from developing.
4. Blue or Green Stains
If your toilet shows blue or green stains, the usual culprit is copper corrosion from your plumbing system.
This happens when the copper pipes begin to deteriorate, leaching metal into the water. Typically, old or poorly maintained plumbing systems have these stains.
5. Pink or Red Slimy Stains
These streaks/stains are slimy, pink or red, and can be found quite often around the waterline or in the toilet tank.
They are caused by bacteria that thrive in areas with dampness and plentiful organic material. Also, they are more common in areas with high humidity.
Disinfecting the toilet bowl and increasing airflow in the bathroom can help combat these stains.
6. Gray or White Chalky Stains
Lime scale is another consequence of hard water and is characterised by a rough, chalky texture.
It forms when calcium carbonate precipitates out of the water to form stubborn white or gray crusts that are difficult to remove.
Clean the toilet bowl regularly using acid solutions such as vinegar to dissolve the lime scale. You are also advised to consider changing to a water softener.
5 Ways to Remove Toilet Bowl Stains

Now that you know what causes toilet bowl stains, let’s explore effective methods on how to remove stains from toilet bowls. Here are five easy ways to clean toilet bowl stains according to our experts:
1. Use Cola
Believe it or not, cola can be a great toilet bowl stain remover! The acidity in cola helps dissolve mineral deposits and stains. Here’s how to clean toilet bowl stain with cola:
- Pour a can of cola into the toilet bowl.
- Let it sit for at least an hour. If the stains are really tough, you can leave it overnight.
- After the wait, scrub the bowl with a toilet brush, focusing on the stained areas.
- Flush the toilet to rinse away the cola and stains.
This method is simple, and many people are surprised by how well it works!
2. Use Baking Soda and Vinegar
Baking soda and vinegar are common household items that can help clean toilet stains. They create a fizzing reaction that can lift stains. Here’s what to do:
- Pour one cup of baking soda into the toilet bowl.
- Then, add one cup of vinegar.
- Let it fizz for about 10 minutes. You can even add a few drops of essential oil to the vinegar for a pleasant scent.
- Scrub parts of the toilet bowl with a brush and then flush.
This method is great for tough stains and helps freshen up your toilet. Plus, it’s eco-friendly!
3. Use Pumice Stone
A pumice stone can be an excellent tool for scrubbing stubborn stains. This natural stone is gentle on porcelain but tough on stains. Here’s how to clean toilet bowl stains with pumice stone:
- Wet the pumice stone and the toilet bowl. Make sure both surfaces are wet to avoid scratching.
- Gently rub the stone on the stains. Focus on areas with heavy staining.
- Rinse the toilet after scrubbing to remove any residue.
Be careful not to press too hard, as this can scratch the porcelain. A pumice stone is a great investment for anyone looking to maintain a clean toilet.
4. Use Commercial Toilet Bowl Cleaners
If home remedies don’t work, you can try store-bought toilet cleaners. These products are specifically designed to tackle tough stains and often contain powerful cleaning agents.
Here’s how to clean toilet bowl stains with commercial toilet bowl cleaners:
- Follow the instructions on the bottle. Most products require you to apply the cleaner, let it sit for a few minutes, and then scrub and flush.
- Choose a product that is safe for your toilet bowl material. Some cleaners are designed for specific types of toilets, so make sure to read the label carefully.
5. Use Hydrogen Peroxide
Hydrogen peroxide is a powerful disinfectant that can help remove stains and kill bacteria. Here’s how to clean toilet bowl stains with hydrogen peroxide:
- Pour about a cup of hydrogen peroxide into the toilet bowl.
- Let it sit for 30 minutes to an hour. This will give the solution time to penetrate the stains.
- Scrub the toilet bowl with a brush and then flush.
This method not only removes stains but also disinfects the toilet, leaving it smelling fresh and clean.
How to Prevent Toilet Bowl Stains

Prevention of toilet bowl staining involves proactive measures: regular cleaning, maintenance, and treatment of the root causes.
It is the simple habits and proper tools that will minimise the occurrence of the stains. Moreover, you can keep your toilet clean and hygienic, so you extend its lifespan to stay in good condition for years to come!
Here are some of the effective ways to avoid toilet bowl stains:
1. Clean the Toilet Bowl Regularly
At least once a week, use a toilet brush and a mild, non-abrasive cleaner to scrub down the inside of your toilet bowl.
This will prevent any buildup before it is time to call in the pros. Give special attention to the waterline and the area under the rim, since these spots are prone to developing stains.
2. Apply Toilet Bowl Cleaner or Tablet
Another helpful measure we suggest is the use of toilet bowl cleaners. These products discharge cleaning agents with each flush into the bowl to help prevent the occurrence of stains over a long period of time.
Multiple options are available over the counter, including the eco-friendly kind that is safer for your plumbing system.
3. Install a Water Softener or Water Filter
Installing a water softener is a worthy investment for homes with hard water.
A softener reduces the mineral content (calcium, magnesium, and iron) in your water, which reduces the chances of stains as well as protects your plumbing fixtures and appliances.
Meanwhile, if you are living in a house with water supplies that have high contents of iron or other metals, the stain issue can be fixed using a water filter.
Installing it either in the main water line or directly in the toilet tank will do an efficient job in filtering out those impurities causing rust and discoloration.
This is particularly helpful within older homes with aging plumbing systems potentially leaching contaminants into the water.
4. Flush Frequently
If the water sits in the bowl too long, there is more time for minerals and bacteria to settle and set stains.
Pay extra attention to toilets in guest bathrooms or other areas of your house that are not often used.
5. Ensure Proper Ventilation
Mould and mildew thrive in humid environments, and excess moisture can contribute to unpleasant stains and odours. So, making sure you have a well-ventilated bathroom is one preventive measure you can take!
Using an exhaust fan, opening windows, or even installing a dehumidifier can help keep the bathroom dry and less hospitable to mold and bacteria.
6. Avoid Harsh Cleaning Products
Some cleaners and tools can damage the toilet bowl’s surface, making it more susceptible to stains.
The products labeled as biodegradable or natural, at the same time, can be gentler towards your bowl and safer for your plumbing system
White vinegar is a natural and economical way to keep toilets free of stains. You can pour a cup of vinegar into the toilet bowl every few weeks and leave it to sit for an hour before scrubbing and flushing to dissolve limescale and keep the bowl fresh.
7. Check Your Plumbing System Regularly
Rust, minerals, and other particles released into your water supply by old or corroded pipes can cause stains to last.
To prevent these kinds of problems in the future, it’s a good idea to have a professional plumber come out for routine inspections.
Additionally, if you’re planning on a bathroom renovation sometime soon — making sure that the new toilet has a stain-resistant coating is a smart move that will pay off in the long run! Your new toilet will require less cleaning as germs and mineral deposits can’t cling to the surface.
Conclusion
Cleaning toilet bowl stains doesn’t have to be a tedious chore. With these effective methods, you can quickly and efficiently restore your toilet’s cleanliness.
Remember to identify the cause of the stains to choose the best cleaning method. Wrong approach might affect the longevity of your toilet, leading to bigger plumbing issues.
If you ever have plumbing issues, like a leaking toilet cistern or an overflowing toilet, don’t hesitate to reach out for help.
Neighbourhood Plumbing is the right company to fix your plumbing problems. Our team consists of plumbing professionals who are experts in tackling any issues on your plumbing system.Want to have our service? Contact us today!
About the Author
From unclogging the toughest drains to repairing leaking toilets, Ricky is a seasoned plumber who has brought his craftmanship to homes across Melbourne. He is passionate about sharing plumbing tips just as much as he is about fixing your plumbing issues. So, when your taps or pipes begin leaking, you know who to call.