10 Natural Ways to Reduce Water Hardness in Your Home

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Protect your skin, hair, and plumbing with these eco-friendly solutions
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If you notice that your faucets have a chalky white buildup, there are spots on your dishes, or your clothes feel rough and stiff, your home may have hard water. Hard water usually contains a high concentration of minerals like calcium or magnesium, which can dry out your skin and hair, decrease the life of your appliances, and cause a funny taste or smell. The best way to soften your water is to install an ion exchange softener in your home, but we’ll also go over DIY methods to decrease the effects of hard water naturally. Keep reading to learn more!

Best Ways to Soften Hard Water Naturally

  1. Boil your water to remove calcium carbonate.
  2. Sprinkle baking soda in your water before you cook or bathe.
  3. Rinse with diluted apple cider vinegar after showering or bathing.
  4. Install an ion exchange shower head filter to remove minerals.
  5. Add washing soda to your laundry to eliminate calcium and magnesium.
  6. Descale your faucets and appliances with diluted vinegar.
1

Boil away impurities.

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    Fill a clean pot or kettle with water and place it on a stove burner set to high. Allow the water to boil for a few minutes, then turn off the heat. [1] Let the water cool, then use a spoon to scoop the sediment off the top of the water before transferring it to a clean container.
    • The sediment will most likely be white and chalky. That’s the calcium leaving the water. [2]
    • Boiling doesn’t get rid of all the impurities in hard water, just temporary hardness caused by calcium, magnesium, and other minerals. [3]
    • Boiling tap water before drinking it may also help reduce your consumption of microplastics because they bond with the calcium carbonate. [4]
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2

Use baking soda in your cooking water.

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    While baking soda can’t soften water completely, it will help alter the pH level to a more natural state. [5] Fill up a pot of water and add 1 tsp (5.6 g) of baking soda when you’re cooking dried beans and peas for a better taste and texture. [6]
    • Soft water also enhances the flavors and aromas in your cooking. [7]
    • Bathe in baking soda water to reduce itching caused by hard water. Sprinkle 1/4 cup (32 g) of baking soda into your bath, then soak in it. [8] When you’re done, wash with soap to get rid of any residue.
3

Rinse your body with apple cider vinegar.

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    Apple cider vinegar (ACV) may balance your skin’s pH levels. [9] It also contains chelating agents that bond to and remove excess minerals. [10] Add 1 ⁄ 2  US tbsp (7.4 mL) of ACV to 1 cup (8 oz) of water and pour it over your body as a final rinse after you finish bathing or showering.
    • To remove more buildup from your hair, mix 3 to 4 US tbsp (44 to 59 mL) with 2  c (470 mL) of water. After shampooing, apply the mixture from your roots to tips. Let it sit for 10 minutes, then rinse and apply conditioner as normal.
    • Try to avoid using ACV as a rinse if you have open wounds or cracked skin. The acidity might increase irritation.
    • Relieve eczema by mixing 1  c (240 mL) ACV into a tub of lukewarm bath water, soaking the affected areas for 15 to 20 minutes, and rinsing with cool water.
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4

Install an ion exchange shower head filter.

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    Shower filters are also effective at neutralizing unpleasant smells, and they are specially designed to work with high temperatures and flow rates. To install one, remove the old shower head and follow the instructions provided to install the new one. [11]
    • Some online shower head sellers may make misleading claims about how much they improve water quality. [12] Look for filters that include evidence to back up their claims.
    • To know exactly what minerals your water contains, try testing it with water hardness testing strips. You can pick up testing strips at your local hardware store.
5

Add washing soda to your laundry.

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    When you throw a load into your washing machine, sprinkle washing soda over your clothes to reduce calcium and magnesium in your laundry. Washing soda also helps lift dirt and grime from fabric, so it can lead to cleaner clothes. [13]
    • The carbonate ions from washing soda dissolve the calcium and magnesium ions in hard water, leading to softer water.
    • Try to only use washing soda in your laundry, not anywhere else. Long-term washing soda use can lead to limescale buildup, which can clog pipes in heating systems.
    • You can also add ¼ cup (62.5 g) Epsom salt to your laundry to soften the water. [14]
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6

Use vinegar to remove hard water buildup.

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    Hard water can lead to limescale buildup, which reduces water pressure in faucets. [15] To descale a shower head or faucet, fill a plastic bag with distilled white vinegar and attach it to the opening with a rubber band. Wait 1 hour, then remove the bag and rinse the area. [16]
    • Hard water can also lower the efficiency and lifespan of appliances that use water, like coffeemakers and fridges. Consult each appliance’s manual to see how to descale it.
    • House cleaning professional Andrii Gurskyi says you can remove orange residue in the shower from hot water by scrubbing it with white vinegar, hot water, and a toothbrush.
    • Aim to descale your faucets, appliances, and other areas prone to buildup once a month.
7

Install an ion exchange softener for your entire water supply.

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    Ion exchange softeners have resin beads that water flows through and traps excess minerals. [17] For whole-house softeners, you may be required by law to hire a professional who can install it in your home. [18]
    • Home ion exchangers are ideal for hard water rated medium to very hard. They are one of the most common choices for improving household water.
    • You may want to run a hard water test first to note the kinds of minerals in your water. Some softening systems may be better at removing certain contaminants than others.
    • Prices vary according to model and region, but these kinds of softeners generally run between $500 and $6,000. [19]
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8

Use a reverse osmosis filter in aquariums.

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    Install a reverse osmosis filter on the back of your fish tank and make sure it’s plugged in. The filter will separate the impurities from the water and leave only the softened water in your tank. [20]
    • Most aquarium-sized reverse osmosis filters cost around $60.
    • There are reverse osmosis filters that can fit on your home’s water supply—the average cost of these is around $2,200. [21]
9

Place driftwood in an aquarium.

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    Pick up a log of driftwood from a beach nearby, then boil it in water for about 5 minutes. Let the log cool and then place it in your fish tank to naturally soften the water over time. [22]
    • Driftwood can also decorate your tank, help anchor aquatic plants like Java fern or moss, and provide shelter and comfort to your fish. [23]
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10

Add peat moss to an aquarium.

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    Purchase a layer of peat moss from an aquarium store and place it at the bottom of your tank. Over time, the humic acid and the tanning agents in the moss will soften the water and filter it. [24]
    • Peat moss may turn your water a slightly yellow-green color; however, it doesn’t mean the water is dirty.
    • Try not to lower the pH of your water for hard water fish species like guppies or mollies. [25]

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      • Calcium and magnesium are the most common minerals in hard water. [26]
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      • Softened water is not recommended for use on plants or gardens because of its high sodium content. [27]
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      • To remove powdery hard water residue from clothing, add 1  c (240 mL) white vinegar to 1 US gal (3.8 L) warm water, soak the item, and rinse it with clean water. [28]
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      References

      1. ↑ https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Supplemental_Modules_and_Websites_(Inorganic_Chemistry)/Descriptive_Chemistry/Main_Group_Reactions/Hard_Water
      2. ↑ https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Supplemental_Modules_and_Websites_(Inorganic_Chemistry)/Descriptive_Chemistry/Main_Group_Reactions/Hard_Water
      3. ↑ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3775162/
      4. ↑ https://www.acs.org/pressroom/presspacs/2024/february/want-fewer-microplastics-in-your-tap-water.html
      5. ↑ https://users.cs.duke.edu/~narten/faq/chemistry.html
      6. ↑ https://www.epicurious.com/ingredients/what-is-baking-soda-article
      7. ↑ https://www.energy.gov/energysaver/articles/reasons-every-home-should-have-water-softener
      8. ↑ https://nationaleczema.org/eczema/treatment/bathing/
      9. ↑ https://health.unl.edu/apple-cider-vinegar-good-your-skin-and-hair
      1. ↑ https://www.realsimple.com/beauty-fashion/skincare/hard-water-skin
      2. ↑ https://www.angi.com/articles/how-to-fix-hard-water-in-shower.htm
      3. ↑ https://www.liebertpub.com/doi/10.1089/ees.2023.0099
      4. ↑ https://www.ccmr.cornell.edu/wp-content/uploads/sites/2/2015/11/Water-Hardness-Reading.pdf
      5. ↑ https://www.housedigest.com/1451548/epsom-salt-hack-soften-bed-sheets-laundry/
      6. ↑ https://www.energy.gov/energysaver/understanding-and-dealing-hard-water
      7. ↑ https://www.bhg.com/homekeeping/house-cleaning/tips/how-to-clean-a-showerhead/
      8. ↑ https://www.mtregional.org/files/882bc66a4/MRW-Water-Hardness.pdf
      9. ↑ https://www.forbes.com/home-improvement/plumbing/water-softener-system-installation-cost/
      10. ↑ https://www.thisoldhouse.com/plumbing/reviews/water-softener-system-cost
      11. ↑ https://chem.libretexts.org/Bookshelves/Inorganic_Chemistry/Modules_and_Websites_(Inorganic_Chemistry)/Descriptive_Chemistry/Main_Group_Reactions/Hard_Water
      12. ↑ https://www.bobvila.com/articles/whole-house-reverse-osmosis-system-cost/
      13. ↑ https://www.theaquariumguide.com/articles/lower-ph-aquarium
      14. ↑ https://natureaquariums.org/aquarium-accessories/benefits-of-driftwood-in-aquarium/
      15. ↑ https://users.cs.duke.edu/~narten/faq/chemistry.html
      16. ↑ https://injaf.org/articles-guides/beginners-guides/beginners-guide-to-aquarium-plants/
      17. ↑ https://www.rhs.org.uk/advice/profile?PID=691
      18. ↑ https://www2.ca.uky.edu/agcomm/pubs/ip/ip7/ip7.pdf
      19. ↑ https://www.cleaninginstitute.org/cleaning-tips/clothes/laundering-problems-solutions

      About This Article

      Article Summary X

      To soften hard water naturally, get a filter installed, or for a short-term solution, try boiling your water before you use it. If you drink water straight from the tap often, consider installing a drinking water filter in your kitchen to remove impurities. Some filters attach directly to your faucet, while others act as filters for pitchers. If you only want to soften small amounts of water at a time, fill your kettle from your faucet and boil it. Let the water cool completely, then transfer it to a container with a baster, siphon, or ladle. Try to avoid any sediment that gathers at the bottom. To stop your boiled water from tasting flat, pour it back and forth between 2 clean containers for a few minutes, which will restore oxygen to the water and improve its taste. If you want to soften your shower water, get an ion exchange shower head filter from a hardware store. These filter chemicals, like chlorine and lead, from your water. For more tips, including how to soften your laundry water, read on!

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