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  2. 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 ...

  3. Swimming pool sanitation - Wikipedia

    en.wikipedia.org/wiki/Swimming_pool_sanitation

    When any of these pool chemicals are used, it is very important to keep the pH of the pool in the range 7.2 to 7.8 – according to the Langelier Saturation Index, or 7.8 to 8.2 – according to the Hamilton Index; higher pH drastically reduces the sanitizing power of the chlorine due to reduced oxidation-reduction potential (ORP), while lower ...

  4. Shock chlorination - Wikipedia

    en.wikipedia.org/wiki/Shock_chlorination

    Shock chlorination is a process used in many swimming pools, water wells, springs, and other water sources to reduce the bacterial and algal residue in the water. Shock chlorination is performed by mixing a large amount of sodium hypochlorite, which can be in the form of a powder or a liquid such as chlorine bleach, into the water.

  5. Calcium hypochlorite - Wikipedia

    en.wikipedia.org/wiki/Calcium_hypochlorite

    Calcium hypochlorite is commonly used to sanitize public swimming pools and disinfect drinking water. Generally the commercial substances are sold with a purity of 65% to 73% with other chemicals present, such as calcium chloride and calcium carbonate, resulting from the manufacturing process.

  6. Boric acid - Wikipedia

    en.wikipedia.org/wiki/Boric_acid

    The boric acid – borate system can be useful as a primary buffer system (substituting for the bicarbonate system with pK a 1 = 6.0 and pK a 2 = 9.4 under typical salt-water pool conditions) in pools with salt-water chlorine generators that tend to show upward drift in pH from a working range of pH 7.5–8.2.

  7. An NYC bathhouse is mining Bitcoin to heat its pools—and ...

    www.aol.com/finance/nyc-bathhouse-mining-bitcoin...

    On the surface, Bathhouse is a classic Brooklyn wellness hangout. The city’s spa-ficionados make the trek to Williamsburg and pay upwards of $45 a day to soak in its pools, relax in its saunas ...

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