Two Ingredient Hard Water Deposit Remover

3 Materials
15 Minutes

This two ingredient hard water deposit remover is the handiest thing to know about!

I think everyone has experienced those hard, thick calcium deposits on faucets or metal around your home.

For this post, we are going to utilize the amazing science of acid to dissolve hard water build up on your faucets!

Here is how to do it.

icon You can view a quick Instagram Reel here to see this great recipe work! Follow us on Instagram for more great tips too.

Ingredients Needed For DIY Hard Water Remover:

  • Distilled White Vinegar (Regular 5% Acidity)
  • Lemon Juice (Fresh or Bottled is Good)
  • Toothbrush or Small Scrub Brush (Optional)


  1. Remove the head of faucet if possible (this is the best way to do it, if you can’t remove it, read other directions in blog post).
  2. Pour enough vinegar in the bowl to cover the top of the faucet head.
  3. Squeeze in lemon juice. A few tablespoons is enough.
  4. Soak the faucet head inside the bowl for 10-15 minutes.
  5. At this point, you can scrub the remaining deposits or soak for longer if needed. Sometimes you don’t even need to scrub the deposits, they will dissolve in the vinegar solution.
  6. Rinse the faucet head with water, then screw back on.

icon For details on ingredient options and all the cool science on how this work, please visit our blog post.

I didn't have fresh lemons, so I used bottle lemon juice and it works just fine! Whatever you have on hand is good.

This is 5 minutes into soaking, you can see how it is starting to dissolve all the build up.

15 minutes later with a little scrubbing inside the grooves.

If you have any questions, please visit our blog post link for details, science, and tips on this!

Suggested materials:

  • 5% distilled white vinegar   (online)
  • Lemon juice   (store)
  • Small scrub brush (optional)   (online)

Alexis @ Chemistry Cachet
Want more details about this and other DIY projects? Check out my blog post!

Frequently asked questions

Have a question about this project?

3 of 13 questions
  • Pearl Mejia Pearl Mejia on Aug 07, 2021

    How can I get the calcium deposit off the travertine tile in the shower?

  • Pearl Mejia Pearl Mejia on Aug 07, 2021

    How can I get the calcium deposit off the travertine tile in the shower?

  • Jfo51534468 Jfo51534468 on Aug 18, 2021

    How to get black gunk out of jets holes in rim of toilet


Join the conversation

2 of 14 comments
  • Happy Days Hometalker Happy Days Hometalker on Aug 05, 2021

    I am going to try this for sure!

  • Tory Tory on Aug 07, 2021

    I usually PutLemonJuice in something like a soda bottle top or even the top of a bottle of lemon juice fill with lemon juice and stick the faucet in the juice. I use either a twist tie or hair tie to hold the bottle cap on. While I clean the rest of the bathroom or kitchen the lemon juice does the hard work for me. Usually the faucet is done about the same time Im finished. I undo whatever is holding the bottle top of on, turn the faucet on to flush & I'm done.