In particular, iron oxide, or rust, is the main problem. If you don't clean your toilet regularly, these stains will naturally show up and darken over time. To remove brown stains in the toilet, you may want to turn to a heavy-duty acid cleaner that will dissolve the rust.
Chances are these issues are caused from a mineral in your water called manganese. Seeing manganese stains from your water isn't an emergency, but at high levels, it can have an effect on the quality of your drinking water, laundry, appliances and plumbing.
Citric acid
More importantly, it's probably even more effective than vinegar for getting rid of that brown stain in the toilet. Simply pour a kettle of almost boiling water into the bowl, follow up with 250ml of citric acid, and leave it for some hours – preferably overnight. The next day, scrub and flush.
The brown stains in your toilet aren't what you think - they're bits of limescale! You aren't doing anything wrong in your cleaning regime; these deposits are caused by hard water.
The release of brown discharge is often caused by a small amount of old blood mixing with your normal vaginal discharge. This creates a brown tinge. The reasoning for this brown colour is that as blood ages, it turns from red to brown giving your discharge light to dark brown colour.
To prevent calcium carbonate from piling up into your cistern, pour a single cup of white vinegar into it. The mixture should be three parts white vinegar to one water. After you pour it into the cistern, mix it slowly and carefully until it's evenly distributed.
The best way to clean toilet stains from tough mineral buildup is with lemon juice or any source of citric acid. Spray on the lemon juice and leave it overnight. Then spay on another light layer and wait a few minutes before scrubbing your toilet. Flush to rinse away the stain.
Brown stains are the result of hard water and not your cleaning wrongly. Don't use bleach as it will only bleach out the stain, but not remove it. Use a clean brush with plastic bristles.
These are the main reasons why there might be a black ring around the toilet: Mineral deposits on your water supply. Mildew and mold spores. Bacteria buildup such as Serratia marcescens.
White Vinegar and Baking Soda
Distilled white vinegar is a natural cleaner, disinfectant, and fungicide, and baking soda is a natural deodorizer, whitener, and mild abrasive. This stain remover combo works best when you need to know how to get rid of toilet stains caused by minerals or mold.
A much better solution is to use some WD-40 Multi-Use Product. Most people don't know that WD-40 can solve many of their household cleaning needs quickly and easily. When cleaning a toilet bowl, WD-40 works by softening the rust and lime deposits, so they can be easily wiped away. You don't need to use much of it.
Hard Water Mineral Buildup. If you regularly notice brown water inside your toilet bowl, it could be due to hard water mineral buildup. Hard water contains high levels of minerals like magnesium, calcium, and iron that can build up over time inside your pipes and fixtures.
To clean calcium buildup out of your toilet, use vinegar or another acidic cleaner. The acid will break down the mineral deposits so you can brush them away. Be sure to take the necessary safety precautions when working with cleaners.
Let It Sit For 12 Hours
Leave the vinegar and water mixture in the toilet tank for 12 hours without flushing the toilet. This is why this cleaning process is best done overnight, as you are less likely to need the bathroom throughout the night than during the day.
In this case, a basic toilet cleaning product may not be enough, and you will need to use undiluted bleach. As a one-stop cleaning solution, pour one cup of bleach around the bowl. Then tackle every inch with a toilet brush or a handheld scrub brush. Let it sit for five minutes, then flush.
A few different things can cause the brown build-up at the bottom of your toilet bowl. One possibility is that your water contains a high level of iron, which can leave behind rust-colored stains. Another possibility is that you have hard water, which can also cause mineral deposits to accumulate in your toilet.
Hydrogen Peroxide and Vinegar
“Combining these two creates peracetic acid or corrosive acid, an irritant that, in high concentrations, can harm the skin, eyes, throat, nose, and lungs,” says Bock.
As it turns out, you can actually unclog a toilet with dish soap instead of turning to a harsh, toxic bowl cleaner.
If the clog still seems to be intact, start over at step 1 and repeat the process a couple of times. For extra-stubborn clogs, you can let the fizz mixture sit overnight or combine this method with plunging.
Cleaning with a mixture of baking soda and vinegar in the bathroom can work really well. To clean your toilet with vinegar, pour a cup of vinegar in the toilet bowl and let sit overnight. The next morning, sprinkle a little baking soda into the bowl, scrub, and then flush clean.