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  2. Water softening - Wikipedia

    en.wikipedia.org/wiki/Water_softening

    The surface of human skin has a light charge that the soap tends to bind with, requiring more effort and a greater volume of water to remove. [4] Hard water contains calcium or magnesium ions that form insoluble salts upon reacting with soap, leaving a coating of insoluble stearates on tub and shower surfaces, commonly called soap scum. [4] [5]

  3. Lime softening - Wikipedia

    en.wikipedia.org/wiki/Lime_softening

    Lime softening produces large volumes of a mixture of calcium carbonate and magnesium hydroxide in a very finely divided white precipitate which may also contain some organic matter flocculated out of the raw water. Processing or disposal of this sludge material may be an additional cost to the process. Drying and re-calcining the waste allows ...

  4. How to Clean and Remove Stains From a Jetted Tub ... - AOL

    www.aol.com/lifestyle/clean-remove-stains-jetted...

    Follow these expert-approved steps on how to clean a jetted tub, whether it's with dishwasher powder or vinegar (rather than bleach).

  5. Swimming pool sanitation - Wikipedia

    en.wikipedia.org/wiki/Swimming_pool_sanitation

    Over time, calcium from municipal water tends to accumulate, developing salt deposits in the swimming pool walls and equipment (filters, pumps), reducing their effectiveness. Therefore, it is advised to either completely drain the pool, and refill it with fresh water, or recycle the existing pool water, using reverse osmosis. The advantage of ...

  6. 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 ...

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

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

    How a hot tub stacks up against taking a cold plunge — and what a new study says about the benefits of doing water therapy after a workout.