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  2. Dealkalization of water - Wikipedia

    en.wikipedia.org/wiki/Dealkalization_of_water

    When alkalinity is the limiting factor affecting the amount of blowdown, a dealkalizer will increase the cycles of concentrations and reduce blowdown and operating costs. The reduction of blowdown by dealkalization keeps the water treatment chemicals in the boiler longer, thus minimizing the amount of chemicals required for efficient ...

  3. Swimming pool sanitation - Wikipedia

    en.wikipedia.org/wiki/Swimming_pool_sanitation

    Total alkalinity should be 80–120 ppm and calcium hardness between 200 and 400 ppm. [14] [failed verification] Good hygienic behavior at swimming pools is also important for reducing health risk factors at swimming pools and spas. Showering before swimming can reduce introduction of contaminants to the pool, and showering again after swimming ...

  4. Salt water chlorination - Wikipedia

    en.wikipedia.org/wiki/Salt_water_chlorination

    Salt water chlorination is a process that uses dissolved salt (1000–4000 ppm or 1–4 g/L) for the chlorination of swimming pools and hot tubs.The chlorine generator (also known as salt cell, salt generator, salt chlorinator, or SWG) uses electrolysis in the presence of dissolved salt to produce chlorine gas or its dissolved forms, hypochlorous acid and sodium hypochlorite, which are already ...

  5. The 10 Best Hot Tubs You Can Invest in for a Long, Cold ...

    www.aol.com/10-best-hot-tubs-invest-000000672.html

    4. Alfi Round Fiberglass Portable Outdoor Hot Tub. Best for the nomad who wants a wood-burning soak wherever they go. The old-school nature of this hot tub alone will have you intrigued.

  6. Yes, Costco Sells Hot Tubs and You Need One ASAP - AOL

    www.aol.com/yes-costco-sells-hot-tubs-013400451.html

    Price tag: $2,999.99 (currently $400 off!) Dimensions: 61 in. x 70 in. x 32 in. Accommodates: 3 people Average rating: 4.6/5 This 20-jet hot tub is the quickest plug-in option for your backyard ...

  7. Alkalinity - Wikipedia

    en.wikipedia.org/wiki/Alkalinity

    Alkalinity (from Arabic: القلوية, romanized: al-qaly, lit. 'ashes of the saltwort') [1] is the capacity of water to resist acidification. [2] It should not be confused with basicity, which is an absolute measurement on the pH scale. Alkalinity is the strength of a buffer solution composed of weak acids and their conjugate bases.

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