Before Image of a Toilet with Hard Water Ring around the water line in the bowl, with a after cleaning picture next to it showing toilet bowl without hard water stain

How to Remove Hard Water Stains from Toilets

4.86 from 169 votes
LEARNING HOW TO REMOVE HARD WATER STAINS FROM TOILETS is possible and super simple.  This quick and easy trick will clean up those hard water stains from your toilets in just minutes without scratching the porcelain! Just in case you don't believe me, I made you all a video ;)
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Keyword: hard water toilet ring, hard water toilet stain, remove toilet ring
Prep Time: 5 minutes
Cleaning Time: 5 minutes
Total Time: 10 minutes


  • Gather supplies.
  • Put on gloves and cut 1-2 small square pieces of Fine-Grit Drywall Sanding Screens. Set them aside.
  • Carefully open the Barkeepers Friend and sprinkle inside your toilet.
  • Wearing the gloves, gently yet firmly, begin to scrub away at the hard water buildup in a circular motion with the Drywall screen. Don’t press TOO HARD. Our goal is to remove hard water stains, not destroy the porcelain.
  • Flush and be amazed!