You can clean toilet stains with a toilet brush, baking soda, and white vinegar. Household cleaning ingredients like Borax or a wet pumice stone can also scrub away tough mineral stains. If a light cleaning can't break through stubborn toilet bowl stains, you're probably dealing with mineral stains.
Pour a few cups of white vinegar into the toilet bowl and scrub it with a toilet brush. If this doesn't get rid of the stains, you can try using a half cup of bleach or Borax powder.
The contaminants notorious for causing brown stains in toilet bowls are iron, manganese and sulfur. These pollutants can also produce iron bacteria, manganese bacteria and sulfur bacteria, which also can produce brown stains.
For a more heavy-duty approach, you can pour an entire bottle of white vinegar over and around the bowl, remembering to cover all of it. Then, leave the vinegar to work for a few hours or overnight. Use your toilet brush to scrub any leftover limescale deposits away the next day.
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.
Vinegar is a natural acid that can dissolve calcium deposits. You can pour vinegar into the toilet bowl and let it sit for a few hours before scrubbing with a toilet brush.
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.
Vinegar will not damage your toilet in any way if it's left in your toilet overnight. Regardless of your toilet's material, the vinegar is not strong enough to damage the toilet or the toilet's plumbing. So, you can leave the vinegar in your toilets overnight without worry.
Safe for various applications and surfaces… (tubs, showerheads toilets, sinks, porcelain, glass, cement, stucco, brick, stainless steel, and much more)!
Grab some gloves and use a Magic Eraser to go to town on toilet bowl stains. Some users even recommend cutting a piece off and letting it dissolve the bowl to remove that unsightly ring all on its own.
However, this doesn't mean it has to be complicated. The most effective way to clean your toilet is by using Borax, which is a multi-purpose cleaning product that effectively cleans hard water stains in the toilet and other plumbing fixtures.
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.
Two of the most effective substances are lemon juice and ordinary vinegar. Lemon juice is usually the best (and will also leave a lovely smell behind). Stronger pickling vinegar and lime juice are both even more acidic and can be used for really stubborn deposits.
Use Coke specifically when you need to remove problem stains like limescale or rust. If you want to avoid the risk of tinting your toilet with Coke, a light-colored carbonated soft drink such as 7UP or tonic water will also suffice.
Another said a dishwasher tablet removes even stubborn stains, commenting: "Drop a dishwasher tablet in the toilet and leave as long as you can before flushing it removes even thick and stubborn limescale." Cleaning experts at Kitchn also recommend using this kitchen essential to remove limescale from the toilet.
It happens because of the evaporation of hard water that leaves behind mineral deposits. These minerals dry out and catch other dirt and bacteria around the buildup, creating layers of green and brown stains.