6. Brown, green or blue toilet stains. What causes stubborn brown stains in the toilet? Often brown stains result from too much manganese in the water. ². Sometimes brown stains are also caused by mineral buildup (limescale) that accumulates over time. Dirt particles and bacteria develop layers over time, which causes the brownish coloring.. To get rid of brown toilet stains by using lemon juice and baking soda you: Shut off the water and flush so the bowl empties; Sprinkle some baking soda in your toilet bowl; Add lemon juice to the bowl and let the mixture sit for 30 minutes; Grab a toilet brush and scrub scrub scrub;
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Using your toilet bowl with brown stains or rings can be off-putting. Luckily, there are many ways to get rid of these unsightly spots. Brown stains at the bottom of your toilet are often caused by a buildup of minerals and dirt. A simple fix is to use a vinegar and baking soda mixture to loosen the buildup.. There are several ways to remove the brown stains at the bottom of a toilet bowl, but first, it's essential to know the causes and how to prevent the stains from happening in the first place. According to Hunker, the brown stain you see at the bottom of the toilet bowl is caused by the mineral content in hard water. Even though you can't.