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  2. In-tank toilet cleaning tablet - Wikipedia

    en.wikipedia.org/wiki/In-tank_toilet_cleaning_tablet

    An in-tank toilet cleaning tablet placed in toilet tank Blue toilet water from using in-tank toilet cleaner tablet. In-tank toilet cleaners (also known as toilet water tablets or drop-in toilet bowl cleaners) are tablets or cartridges that add chemicals to toilet tank water to reduce toilet bowl stains.

  3. Water chlorination - Wikipedia

    en.wikipedia.org/wiki/Water_chlorination

    Manual Control Chlorinator for the liquefaction of chlorine for water purification, early 20th century. From Chlorination of Water by Joseph Race, 1918. The first continuous use of chlorine in the United States for disinfection took place in 1908 at Boonton Reservoir (on the Rockaway River), which served as the supply for Jersey City, New ...

  4. Portable water purification - Wikipedia

    en.wikipedia.org/wiki/Portable_water_purification

    [citation needed] Silver ion/chlorine dioxide-based disinfecting agents will kill Cryptosporidium and Giardia, if utilized correctly. The primary disadvantage of silver ion/chlorine dioxide-based techniques is the long purification times (generally 30 minutes to 4 hours, depending on the formulation used).

  5. Chloramination - Wikipedia

    en.wikipedia.org/wiki/Chloramination

    Chloramination is the treatment of drinking water with a chloramine disinfectant. [1] Both chlorine and small amounts of ammonia are added to the water one at a time which react together to form chloramine (also called combined chlorine), a long lasting disinfectant.

  6. Campden tablet - Wikipedia

    en.wikipedia.org/wiki/Campden_tablet

    They are also used to eliminate both free chlorine and the more stable form, chloramine, from water solutions (e.g., drinking water from municipal sources). Campden tablets allow the amateur brewer to easily measure small quantities of sodium metabisulfite, so they can be used to protect against wild yeast and bacteria without affecting flavour.

  7. Study estimates when Yellowstone National Park's giant ... - AOL

    www.aol.com/study-estimates-yellowstone-national...

    However, the recent study, using a method known as magnetotellurics that tracks the electric conductivity of magma, found something different. "When we used magnetotellurics, we were able to see ...