How Do I Remove Hard Water Build up?

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  • Written By: Christina Edwards
  • Edited By: W. Everett
  • Last Modified Date: 14 September 2019
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Water with a high mineral content, or hard water, can often result in a filmy build up of minerals on some surfaces. Commercial cleaners or acidic substances, such as vinegar or lemon juice, can be used to remove hard water build up. These substances can be sprayed directly onto sink, tub, and faucet surfaces and allowed to sit, before being wiped or rinsed off. Shower heads can also be soaked in these solutions to remove build up. They can also be run through some appliances to removed build up.

Hard water is water with a large amount of dissolved minerals in it. Calcium and magnesium are two common minerals found in hard water. When this water comes in contact with some surfaces repeatedly, these minerals can be left behind. This is what creates the hard-to-remove white hard water build up.

Several commercial cleaners are available for removing hard water build up. These can be a little expensive, however, and they also usually contain several harsh chemicals that can produce dangerous fumes and irritate the skin. Natural hard water stain removers can also be used, and these are usually just as effective. White vinegar, for instance, is often used to effectively remove hard water build up without any adverse reactions. Lemon juice can also be used.


A number of surfaces can accumulate hard water build up, especially sinks, tubs, shower walls, and water fixtures. Vinegar can be sprayed directly onto these surfaces and allowed to sit for several minutes. After about 10 to 30 minutes, the vinegar can be wiped off. Stubborn hard water build up may require some light scrubbing.

Vinegar or lemon juice can also be used to help prevent hard water build up in showers or tubs. These can be sprayed onto all surfaces several minutes before taking a shower or bath. When the shower or bath water is run, the water will rinse away the solutions and help prevent the minerals from building up.

Many people with hard water also have problems with the mineral build up clogging their faucets and shower heads. Both of these fixtures can be soaked for several hours in vinegar to help remove the build up. Faucet heads can usually be unscrewed and dropped into a small container of vinegar. To unclog a shower head, however, a plastic bag filled with vinegar can be secured around the shower head with a rubber band.

Appliances that use water can also accumulate hard water build up, which can be unsightly and impede the proper performance of the appliance. To get rid of hard water build up in a coffee pot, a strong solution of vinegar and water can be run through the machine several times. Plain water should be run through the machine afterward to remove any remaining vinegar that may affect the taste of the coffee.

Washing machines and dishwashers are also usually affected by this build up. Adding a hard water remover to the machines and letting them run can help remove any hard water stains and build up. Hard water can also leave white spots and stains on glasses, and vinegar can be added during the rinse cycle of a dishwasher to prevent this.


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Post 2

@raynbow- Most hardware and home improvement stores have hard water tester kits that are inexpensive and easy to use. You can find out for sure just how hard your water is by using one.

Based on how your dishes look when they come out of the dishwasher, chances are that you do have hard water. If you follow the suggestions in this article, you can correct a lot of the problems hard water causes as well as remove those pesky water spots.

Post 1

I am not sure if I have hard water or not, but my glasses usually come out of the dishwasher with water spots on them. How can I find out for sure whether or not I have hard water?

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