To remove limescale from a toilet, turn off the main water valve behind the toilet, remove the water, and pour vinegar and baking soda into the toilet bowl. After a few minutes, scrub the bowl using a toilet scrubber with nylon bristles.Continue Reading
Find the main water valve located on the water line between the toilet and the wall. Turn the water off by turning the valve clockwise.
Use a plastic cup to remove as much water as you can from the bowl. Put the toilet seat and cover up.
Pour 1 cup of white vinegar and 1/2 cup of baking soda into the toilet bowl. The consistency of the resulting paste should be thin. Wait at least 15 minutes for the bubbles to disappear.
Scrub the limescale stains off the bowl with a nylon toilet scrubber. Push the end of the scrubber into the bowl, then swirl the vinegar and baking soda solution around. Wait a few minutes, then pour another 1/2 cup of vinegar into the bowl. Scrub the bowl again.
Turn the main water valve counterclockwise, then flush the toilet. Inspect the bowl for remnants of lime deposits. If some limescale remains, turn the water off, add vinegar and baking soda, and then scrub the toilet again.