An important statement from our President, Alison Gutterman.

Jelmar has helped our customers fight the clean fight for more than 50 years. Under no circumstances should our products be ingested or injected into the human body or used topically. Please follow the usage instructions on our product labels. The best way to prevent illness is to avoid being exposed to COVID-19. Wash your hands, stay at home, practice social distancing and listen to the advice of public health experts. We wish you and your family health and happiness during this difficult time.

For more information on how our products are intended to be used, visit our product page.

How to clean 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.”

As Ann discovered, CLR Calcium, Lime & Rust Remover is a great way to clean away calcium and lime deposits as well as scale and rust from your toilet. Here’s how she did it.

How to Remove Hard Water Stains

using CLR Calcium, Lime & Rust Remover

  • Put on rubber 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.
For stains above the water line, you do not have to remove the water. Apply the CLR Calcium, Lime & Rust Remover directly to the stains and scrub with the brush or pumice stone. Wait for 2 minutes then flush the toilet. Repeat this process as needed.

If hard water is an issue for you, it’s probably staining more than your toilet. Check out our how to videos showing you how to remove hard water stains from your showerhead and dishwasher.

How to Videos

How to video / Multi Use

How To Clean a Showerhead


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