How to remove toilet bowl calcium deposits

Updated April 17, 2017

There's nothing worse than trying to keep your bathroom clean and spotless and then finding that ring of rust-coloured calcium deposits on the inside of your toilet bowl. Calcium deposits build up because of hard water in many localities and can prove stubborn and resistant to regular scrubbing and cleaning, as well as use of common cleansers. Some common home remedies for attacking and reducing the appearance of unsightly calcium deposits in the toilet offer positive and effective results.

Prepare to use some elbow grease for some stubborn calcium deposits on the inside of your toilet bowl. One of the most common remedies is to turn off the water supply to the toilet, flush and then attack the stains with a pumice stone. This may be very effective, depending on how severe and thick the ring is, but with patience and a bit of elbow grease, offers effective results. When done, turn the water back on.

Weekly cleanses with soft scrub toilet cleaning products may help prevent build-up of calcium, and may prove effective for very minor deposit stains if dealt with on a regular basis.

Try pouring a gallon or two of white vinegar into the toilet bowl and letting it sit for the night. Vinegar contains acid that helps break down calcium deposits. In the morning, flush and then scrub the ring or deposit with pumice or a firm scrubbing pad. This process may need to be repeated a few times if the calcium or lime deposits are especially thick, dark or old.

Try commercial plumbing products designed to remove calcium build-up. Visit your local plumbing or home improvement store and purchase a bottle, taking care to read the instructions on package labels. However, homeowners should know that most chemical compounds will require adequate ventilation and may be quite expensive, and in many cases home remedies provide the same results.

Things You'll Need

  • Pumice stone
  • Vinegar
  • Commercial chemicals (optional)
Cite this Article A tool to create a citation to reference this article Cite this Article

About the Author

Denise Stern is an experienced freelance writer and editor. She has written professionally for more than seven years. Stern regularly provides content for health-related and elder-care websites and has an associate and specialized business degree in health information management and technology.