Stubborn limescale marks in the toilet bowl can hard to remove, but these highly-rated picks are just the ticket, according ...

Step 2: Remove the Old Wax Seal and Inspect the Flange Scrape off the old wax ring from the flange, toilet base, and floor using a putty knife. Inspect the flange for cracks, rust, or deterioration.

You might also notices red stains in the toilet caused by rust from the pipes. What if there's mold on the toilet? If you notice greenish or black spots on the toilet, it's most likely mold.