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2. Water softening - Wikipedia

   en.wikipedia.org/wiki/Water_softening

   Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water requires less soap for the same cleaning effort, as soap is not wasted bonding with calcium ions. Soft water also extends the lifetime of plumbing by reducing or eliminating scale build-up in pipes

3. The 12 Best Water Softeners of 2022 - AOL

   www.aol.com/news/remove-damage-causing-hardness...

   Hard water can damage hot-water appliances, in addition to your skin and hair. Skip to main content. 24/7 Help. For premium support please call: 800-290-4726 more ways to reach ...

4. Dealkalization of water - Wikipedia

   en.wikipedia.org/wiki/Dealkalization_of_water

   Chloride cycle dealkalizers operate similar to sodium cycle cation water softeners. Like water softeners, dealkalizers contain ion-exchange resins that are regenerated with a concentrated salt solution - NaCl. In the case of a water softener, the cation exchange resin is exchanging sodium (the Na + ion of NaCl) for hardness minerals such as ...

5. Calgon - Wikipedia

   en.wikipedia.org/wiki/Calgon

   It gave rise to derivative products which have diverged from the original composition. Today, Calgon water softener contains the active ingredient sodium citrate, [2] and the now discontinued powder used zeolite and polycarboxylate, all of which are less problematic in wastewater treatment than phosphates.

6. Lime softening - Wikipedia

   en.wikipedia.org/wiki/Lime_softening

   Lime softening (also known as lime buttering, lime-soda treatment, or Clark's process) [1] is a type of water treatment used for water softening, which uses the addition of limewater (calcium hydroxide) to remove hardness (deposits of calcium and magnesium salts) by precipitation.

7. Talk:Water softening - Wikipedia

   en.wikipedia.org/wiki/Talk:Water_softening

   The definition of water hardness should be included within this article. In North America, water hardness is usually measured in units of gpg or grains per gallon, which is equivalent to the concentration of Ca++ and Mg++ ions in ppm, divided by 17.1. The article later mentions anion resins, and "water softeners" which remove SO4.