How to Clean Hard Water Stains From Toilets

Hand in yellow gloves scrubbing a toilet bowl with a brush to remove hard water stains.

One thing we constantly hear about is how difficult it can be to remove hard water stains. Ann from Newtown, Connecticut contacted us after she used CLR® Calcium, Lime & Rust Remover in her toilet.

“I wanted to let you know we tried CLR on our horrible rust/hard water stains in the toilet. We have hard water and for years have been plagued with icky looking rings. With scrubbing, our toilets are now white and no other product has been able to do that. Thanks.”

Let's follow in Ann's footsteps and uncover the effectiveness of CLR Calcium, Lime & Rust Remover in transforming your bathroom. Ann's success story highlights the remarkable capabilities of this product in combating stubborn calcium, lime, and rust stains. Here's how it worked for her:

Ann was thrilled to find that CLR Calcium, Lime & Rust Remover, easily recognizable by its iconic grey bottle, is specifically engineered to dissolve tough mineral deposits and surface rust stains. 

This potent formula is ideal for targeting those problematic areas where buildup occurs, ensuring your bathroom remains pristine and sparkling clean.

Easy Steps to Remove Hard Water and Rust Stains using CLR Calcium, Lime & Rust Remover

  • Put on cleaning gloves
  • Turn off the water supply to the toilet
  • Flush the water from bowl
  • Pour 1 cup of CLR into bowl
  • Wait 2 minutes
  • Scrub the bowl with a toilet brush or pumice stone for 2 minutes or until the soil is loosened
  • Turn the water supply back on
  • Flush

Always read label instructions before use.

If hard water is leaving unsightly marks on your fixtures, it's likely affecting more than just your toilet. Don't worry, we've got you covered! Dive into our comprehensive how-to videos, where we walk you through step-by-step methods to tackle hard water and rust stains from various surfaces, including showerheads and dishwashers. Say goodbye to frustrating stains and hello to sparkling clean fixtures with our expert tips and tricks.