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  2. Water softening - Wikipedia

    en.wikipedia.org/wiki/Water_softening

    Minerals containing calcium and magnesium form soluble bicarbonates when exposed to carbonic acid. Water containing these minerals is known as "hard water". [citation needed] When hard water is heated in a plumbing system, carbon dioxide goes out of solution, and bicarbonates become carbonates, which are much less soluble.

  3. 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 ...

  4. Backwashing (water treatment) - Wikipedia

    en.wikipedia.org/wiki/Backwashing_(water_treatment)

    Spent backwash water is either discharged without treatment to a sanitary sewer system or is treated and recycled within the plant. [4]: 22.37–22.40 Historically, backwash water was discharged directly to surface water supplies; however, direct discharge is now highly regulated through NPDES discharge permits and is often discouraged. Used ...

  5. Water purification - Wikipedia

    en.wikipedia.org/wiki/Water_purification

    Alkaline water (above pH 7.0) does not necessarily mean that lead or copper from the plumbing system will not be dissolved into the water. The ability of water to precipitate calcium carbonate to protect metal surfaces and reduce the likelihood of toxic metals being dissolved in water is a function of pH, mineral content, temperature ...

  6. Backflow prevention device - Wikipedia

    en.wikipedia.org/wiki/Backflow_prevention_device

    Backflow prevention device. The simplest, most reliable way to provide backflow prevention is to provide an air gap.An air gap is simply an open vertical space between any device that connects to a plumbing system (like a valve or faucet) and any place where contaminated water can collect or pool.

  7. 13 Things Lurking in Your Home That Could Be Triggering Your ...

    www.aol.com/finance/13-things-lurking-home-could...

    Cleaning Products. Some household cleaning agents have been linked to an increase in asthma and allergy symptoms. These tend to be products that contain harsher chemicals, including ammonia ...

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