It is not uncommon for stains to appear in toilet bowls. Mineral build-up--such as copper, calcium and lime--is a typical cause of toilet bowl stains. Blue-green marks located in your toilet bowls are the result of copper stains. Blue-green stains will cause your toilet to look dingy and dirty. Toilet bowl cleaners, which are available at local department stores, can easily remove copper stains. Alternatively, use household items to successfully remove copper stains from toilet bowls.
Pour 1 cup of distilled white vinegar into the toilet bowl.
Sprinkle 1 cup of table salt into the bowl.
Scrub the toilet with a scrub brush.
Flush the toilet and examine the bowl for copper stains. If stains are still present, repeat the process.
Add 1/4 cup of borax inside the toilet bowl.
Allow the borax to sit in the toilet bowl overnight.
Mix together 1/2 cup of borax with 1 gallon of water. Add a few drops of pine oil to the mixture.
Saturate a sponge in the mixture. Scrub the inside of the toilet bowl with the sponge.
Flush the toilet and check for stains. If copper stains persist, repeat the process.
Sprinkle the inside of the bowl with baking soda. Cover the sides liberally.
Add a few drops of a mild dish washing liquid.
Scrub the inside of the toilet bowl. Flush the toilet and check for stains. Repeat the process if necessary.
Moisten a pumice stone with water.
Scrub the blue-green stains with the moistened stone. Gently apply pressure while scrubbing. Be sure to keep the pumice stone wet.
Saturate a sponge with water and soap. Use the soapy sponge to wipe the inside of the toilet bowl.
Flush the toilet and check for stains. Repeat the process if stains are still present.
Wear rubber gloves when cleaning the toilet bowl.