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  2. 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 ...

  3. 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.

  4. Water chlorination - Wikipedia

    en.wikipedia.org/wiki/Water_chlorination

    As an alternative to shock chlorination, some swimming pools are chlorinated by use of a chlorine-generating filter that electrolyzes common salt. Pools chlorinated by this method generally have lower levels of chlorine than directly chlorinated pools. Such pools are called saltwater pools. [citation needed]

  5. CDC confirms red eyes at the pool are caused by urine, not ...

    www.aol.com/news/cdc-confirms-red-eyes-pool...

    While chlorine kills most bacteria such as E. Coli in less than a minute, it takes at least 16 minutes to kill Hepatitis A, and the Cryptosporidium parasite can last in the swimming pool for over ...

  6. Ex-employee says chlorine levels at Cary swim school caused ...

    www.aol.com/news/ex-employee-says-chlorine...

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  7. Hidden germs in public pools are making more people sick

    www.aol.com/news/2016-05-31-hidden-germs-public...

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  8. Swimming pool bacteria - Wikipedia

    en.wikipedia.org/wiki/Swimming_Pool_Bacteria

    The team found that bacteria seemed to be more prevalent in outdoor pools. [4] Furthermore, they noted that the higher the pH of the pool, the more bacteria were present in the water. 20.2% of the bacteria in the pools were found to be S. aureus. [4] Another study reported two experiments involving a large pool and a small pool. [5]

  9. Does chlorine kill coronavirus? - AOL

    www.aol.com/article/lifestyle/2020/06/03/does...

    The CDC recommends maintaining a free chlorine concentration of at least 1 part per million in swimming pools, and at least 3 ppm in hot tubs. Pools should also strive for a pH of 7.2 to 7.8 ...

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