how to clean toilet stains
1 One method is to place three cups of vinegar into the toilet bowl and scrub the stains with a toilet brush. 2  The other method is to put the vinegar into a spray bottle, drain the toilet bowl and spray the vinegar directly onto the stains. 3  Bleach Bleach is a very strong cleaning agent. When you see the stains have disappeared flush away the bleach. 2  Borax powder Borax powder is a very powerful cleaning agent that's not found in a supermarket, but in a hardware store. 3  Shut the water supply to the toilet tank and empty the bowl by flushing it once.