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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. 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. 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. Rich Californians in fire-prone areas are paying up to $150K ...

    www.aol.com/finance/rich-californians-fire-prone...

    Homes with wood siding or cedar shakes can be treated with fire-retardant chemicals, though in California, such treatments must meet standards set by the [California State Fire Marshall] 9https ...

  6. Swimming pool bacteria - Wikipedia

    en.wikipedia.org/wiki/Swimming_Pool_Bacteria

    Swimming pool bacteria are the diverse array of bacteria that are present in aquatic environments, primarily swimming pools, which can have effects on human health and water quality. Recreational waters are known to be source of infectious diseases .

  7. To keep forever chemicals out of surface water, NC may just ...

    www.aol.com/keep-forever-chemicals-surface-water...

    Using a standard to limit discharges of those chemicals, DEQ argued, would make it cheaper for downstream utilities that rely on surface water to meet strict drinking water standards the U.S ...

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