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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. Bromine - Wikipedia

    en.wikipedia.org/wiki/Bromine

    However, bromine is usually not used outside for these applications due to it being relatively more expensive than chlorine and the absence of a stabilizer to protect it from the sun. For indoor pools, it can be a good option as it is effective at a wider pH range. It is also more stable in a heated pool or hot tub. [74]

  4. Dow process (bromine) - Wikipedia

    en.wikipedia.org/wiki/Dow_process_(bromine)

    Where desired, free bromine may be obtained by thermal decomposition of ferrous bromide. [1] Before Dow entered the bromine business, brine was evaporated by heating with wood scraps and then crystallized sodium chloride was removed. An oxidizing agent was added, and bromine was formed in the solution. Then bromine was distilled.

  5. Uniform Swimming Pool, Spa and Hot Tub Code - Wikipedia

    en.wikipedia.org/wiki/Uniform_Swimming_Pool,_Spa...

    Designated as an American National Standard, the Uniform Swimming Pool, Spa and Hot Tub Code (USPSHTC) is a model code developed by the International Association of Plumbing and Mechanical Officials to govern the installation and inspection of plumbing systems associated with swimming pools, spas and hot tubs as a means of promoting the public's health, safety and welfare.

  6. New Mexico teen accused of killing his parents, siblings with ...

    www.aol.com/news/mexico-teen-accused-killing...

    Police in New Mexico said a 16-year-old teen killed four members of his family including his mom, dad and siblings over the weekend.

  7. Here's What You Actually Need To Get At The Grocery Store ...

    www.aol.com/heres-actually-grocery-store-snows...

    Instant coffee, tea, and hot cocoa mix. Shelf-stable juice. Snacks. Your family can get hungry quickly in cold weather, especially if you're shoveling or trudging through snow. Buy your favorite ...