How to Remove Hard Water Stains from Porcelain Sink – Super Easy Methods!

Last Updated: August 26, 2022 | By JULIAN GILL

Well washed and well maintained that is shiny presents a sleek and appealing look. Not being able to correctly clean the porcelain will trouble you with hard water stains or rust.

In this post, we’re going to discuss the uses of basic ingredients to remove the stains or buildup from a porcelain sink.

Hard water stains are formed as the mineral particles build up on the surface over time. It is very difficult and tricky sometimes to get rid of these stubborn stains. With careful cleaning and adopting correct techniques, for years to come, your sink will be sparkling.

Removal of Hard Water Stains from Porcelain Sink

Knowing the method to remove all types of stains like will make a difference when it comes to a white porcelain sink. The longer these stay on your porcelain sink, the more difficult it becomes to remove them. So, it is always suggested to clean these stains in the first place.

Therefore, cleaning porcelain sinks is important to avoid staining as soon as possible. This can scratch the porcelain surface and contribute to discoloration. The use of harsh chemical compounds to purify porcelain enamel should also be avoided. Here we will guide you on how to get rid of these hard water stains.

Calcium and mineral deposits left behind in your water are the product of harsh water stains.

As a result, the sink can be discolored and looks old. If there is much mineral deposit on the sink, it might look pinkish.
I’ve faced this situation. So let’s discuss how I’ve solved this problem.

What you’ll need:

  1. Putty knife
  2. Surface cleaner (Calcium & Lime Remover)
  3. Rag

Working Procedure:

My sink stopper was old and poorly discolored by the calcium deposit. I’ve used a putty knife very gently to work on the stopper and loosen the buildup. But you must be careful when scraping it about scratches on the sink or stopper.

Working by a putty knife on the sink stopper to loosen the calcium deposits.
Working by a putty knife on the sink stopper to loosen the calcium deposits.

After scraping, the stopper looks a little shining and gets the scale off. So let’s work on the porcelain sink now.

After scrape with putty knife the stopper looks better
After scrape with the putty knife the stopper looks better

My sink finish looked old due to a dull haze on it.
I was going to try a calcium deposit cleaner (CLR Pro).
First, shake it up nicely. Then I poured it directly on the sink surface and got pump it.
Then I let sit it on the sink surface for 12 hours. (If the stains are not so tough, you can try it for 1 hour also).

Then rinse it out with a rag nicely.

And that’s it! All the stains had gone, and the sink looked like new.

After removing all the hard water stains from my porcelain sink
After removing the hard water stains from my porcelain sink

3 Different Ways to Clean the Hard Water Stains From Your Porcelain Sink

1. Using Tartar cream paste

If you are not yet acquainted with Cream of Tartar, then you need to become acquainted with it, especially if you live in an area that is famous for hard water. Skilled cleaners have recently found that this natural product is excellent for removing rust and hard water stains due to its highly acidic existence.

You’re going to need:

  • 1 cup Tartar Cream.
  • A non-abrasive scourer


  • Run the water to wet it through the drain.
  • Sprinkle Tartar cream around the sink and focus more on the stained bits.
  • Tartar’s cream is typically powder-shaped. To shape a runny paste, sprinkle some water.
  • Take your kitchen scourer and focus on the flecks, then leave the paste for a bit.
  • Come again and repeat the step of scrubbing.
  • Rinse off the paste and open the faucet.

2. Using the mixture of Lemon and salt

Lemon and salt have a very good working effect on hard water and this is a simple and natural process.

You’re going to need:

  • 1 Lemon
  • 2 salt tablespoons
  • A non-abrasive scourer


  • Squeeze lemon for the lemon juice.
  • Mix the lemon juice and the salt into a paste.
  • Place the paste on the porcelain sink and rub the paste against the spoons gently.
  • Now leave the paste in place for a few minutes or an hour.
  • Come down, scrub again and go up again.
  • The effect leaves a sparkling, light, stainless sink.

3. Using Soft scrub and Turtle Wax

You can also try the Soft Scrub and Turtle Wax to remove the lime and calcium buildup on your sink. The wax make your sink shiner more than before. Let’s start!

You’re going to need:

  • Soft Scrub
  • Turtle Wax
  • Rag


  • Wet the sink with warm water and pour it with Soft Scrub surface cleaner. (Shake well the cleaner before applying)
  • After some time, use a rag to wipe the sink nicely.
  • Finish with clean water by rinsing the sink.
  • Then take a Turtle Wax and shake it up nicely.
  • Pour the wax onto the sink.
  • Let it sit there for about ten minutes
  • Then wipe it with a clean and dry rag.

How To Avoid Blemishes and Keep a Shiny Porcelain Sink Clean Every Day:

Tip 1

When you clean the house every morning, clean the sink with baking soda and the washing of your preferred soap.

Tip 2

Clean with lemon juice, or white distilled vinegar and baking soda once a week.

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author of julian gill pictureJulian Gill

Julian Gill is a mechanical engineer and Certified in Plumbing Design (CPD) and worked as a plumbing engineer for ten years. Besides this, he is interested in home improvement and currently works as a writer. @JulianGillPro

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