What Causes Yellow Stains In Toilet Bowl 2022 [Clean Toilet]

What Causes Yellow Stains In Toilet Bowl

There are many reasons for a white toilet bowl to turn yellow. The main reason is the calcium buildup in the toilet, which changes its color into yellow when it is not washed often. But, how can calcium build up in the toilet bowl, and what causes yellow stains in the toilet bowl?

The answer is quite simple as it depends on the type of water being used to wash off the toilet. You may have heard about water being defined as hard or soft. Water is not all the same; it is based on the amount of mineral content added to the water. Soft water has 17 parts per million of calcium and magnesium in it, whereas hard water has a number of minerals of 120 to 180 parts per million. It depends on the amount of mineral content in water.

How Does Hard Water Cause Yellow Stains In The Toilet Bowl?

As hard water is rich in minerals, so after using it multiple times, it starts to spread in the bowl. Over time, the hard water accumulates and becomes visible inside the toilet bowl. The accumulation is visible in the form of yellow stains. It further can generate a toilet blockage through the buildup of minerals in the toilet pipes and starts clogging them.

To assume that hard water is the only thing causing yellow stains in the toilet will be wrong.

There are many other chemical substances like tannins leaving a stain on the toilet. Tannins are decayed organic matters like animal matter found in many water supply networks. Tannins will probably leave a yellow stain in a toilet bowl, making the look have a brownish-yellow lining. Every time the water is flushed, tannins will find their way through the water causing discoloration in the walls of the bowl.

  • Yellow Stain Due To The Accumulation Of Urine Residue

The hue of yellow ranging from light to dark can also be the result of urine residue accumulation. A solid compound called the Uric scale is formed by the combination of calcium and protein deposits in the urine. This chemical change causes urine to remain on the surface of the toilet bowl.

When the toilet is not flushed, or the bowl is not cleaned on a regular basis, yellow stains gradually start to form. As urine has a yellow color, so the bowl holds the pigmentation, and the color gets darker as long as it takes to flush it.

  • Does Flushing The Toilet More Often Causes Yellow Stains?

It can be the case as when the toilet is flushed; it leaves water on the walls of a toilet bowl. When the process of evaporation takes place, water evaporates, leaving behind the mineral deposits, also called lime scale. This buildup of lime scale can damage the surface of the bowl material and can produce yellow discoloration.

Causes of yellow stain include many chemical reactions but other than this, the material of the toilet bowl must be highlighted as well. Toilets come in various different materials such as stainless steel, plastic, porcelain, and clay.

Some materials might be made of low quality and do not have a protective coating. This can greatly affect the toilet bowl to easily produce permanent stains in a short time.

  • Stains And Discoloration In A Toilet Bowl

A toilet bowl cannot be completely dry at all times. It is already wet at some parts and is made wet occasionally. The process of wetting the already wet toilet bowl causes the bacteria to form. This state of bacterial moisture produces discoloration. Read Also.

  • Can The Chemicals Used To Clean Toilet Bowls Produce Yellow Pigmentation? 

Yes, some of the toilet bowl cleaners contain dyes that may clear the toilet for a while. But it can encourage the chemical phenomena to take place and can lead to stains in the bowl. What about bleach being used as a toilet cleaner?

Basically, bleach is harmful to cleansing the toilet bowl if not diluted with water. It consists of toxic ingredients which create the surface of the bowl to erode. First, by showing the signs of discoloration and then slowly eroding the material, causing rust stains.

  • Stains From Cleaning Chemicals

Many cleansers are used to disinfect the toilet bowls, but the ones with dangerously harsh chemicals tend to infect the toilet rather than disinfect it. Such as, chlorine is a highly toxic chemical that can make the toilet discoloration worse. This type of cleaning chemical, when used for sanitation and are leftover for some time, produces permanent stains in the bowl. You can use auto cleaning toilets for your convenience.

Final words

Yellow stains in the toilet bowl will be formed due to one cause or another. A toilet bowl is a place supposed to be wet and infected because of bacterial issues. Despite cleaning it over and over again, it will form stains after some time. It is kind of natural for a toilet to buildup stains and has some discoloration.

Worth Reading: Best Anti Clogging Toilets

Frequently Asked Questions (FAQs)

How to remove yellow stains from the toilet?

To remove yellow stains from a toilet bowl, sprinkle baking soda on the area with yellow stains. Take a toilet brush and scrub the toilet surface gently. Now pour a cup of vinegar on the stained area and allow it to set properly for 30 minutes. Thoroughly rinse with normal water. Repeat the process if yellow stains are not removed completely.

Can I use bleach to remove yellow stains from the toilet?

You can use bleach to remove yellow stains from the toilet but make sure the bleach is safe for the toilet surface. If the bleach is not safe, don’t use it on your toilet, or it will damage the surface of a toilet bowl.

Does vinegar damage the toilet bowl?

Vinegar is a safe and effective cleaning agent used for countless cleaning remedies. Vinegar will not harm the toilet bowl, tank, or any component of your bathroom. Fill a clean spray bottle with vinegar and use it to remove grime, dirt, and mineral stains from toilet bowls, kitchen sinks, and other appliances in your home.

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