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  2. 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 ...

  3. 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 ...

  4. Sodium bisulfate - Wikipedia

    en.wikipedia.org/wiki/Sodium_bisulfate

    Sodium bisulfate is used primarily to lower pH. It is also used in metal finishing, cleaning products, [2] and to lower the pH of water for effective chlorination in swimming pools and hot tubs. [3] Sodium bisulfate is also AAFCO approved as a general-use feed additive, including use in poultry feed [4] and companion animal food. [5]

  5. 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.

  6. Hot tub or cold plunge? Experts say there are benefits — and ...

    www.aol.com/lifestyle/hot-tub-cold-plunge...

    Hot water immersion, also known as hot water therapy, involves fully or partially immersing yourself in hot water (by sitting in a hot tub, for example). “It’s used more for muscle relaxation ...

  7. Water testing - Wikipedia

    en.wikipedia.org/wiki/Water_testing

    Companies will be required to conduct water testing at least 90 days prior to and up to 120 days after hydraulically fracturing a well, which includes analysis of pH, alkalinity, total dissolved solids, and total petroleum hydrocarbons. The proposed rules necessitate disclosure of the identity and volume of chemicals used in fracturing fluid. [28]