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  2. Water dispenser - Wikipedia

    en.wikipedia.org/wiki/Water_dispenser

    The bottle size varies with the size of the unit, with the larger versions in the US using 5-US-gallon (19 L) bottles. This is also the most common size elsewhere, labeled as 18.9 liters in countries that use the metric system. Originally, these bottles were manufactured at 3,5 or 6 US gallon capacity (11.4, 18.9 or 22.7 liters) and supplied to ...

  3. Swimming pool sanitation - Wikipedia

    en.wikipedia.org/wiki/Swimming_pool_sanitation

    An electrically operated water pump is the prime motivator in recirculating the water from the pool. Water is forced through a filter and then returned to the pool. Using a water pump by itself is often not sufficient to completely sanitize a pool. Commercial and public pool pumps usually run 24 hours a day for the entire operating season of ...

  4. Comparison of pumps - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_pumps

    Different types of pumps are suitable for different applications, for example: a pump's maximum lift height also determines the applications it can be used for. Low-lift pumps are only suitable for the pumping of surface water (e.g., irrigation, drainage of lands, ...), while high-lift pumps allow deep water pumping (e.g., potable water pumping ...

  5. Water pouring puzzle - Wikipedia

    en.wikipedia.org/wiki/Water_pouring_puzzle

    To obtain 4 liters using 3-liter and 5-liter jugs, we want to reach the point (4, 0). From the point (4, 0), there are only two reversible actions: filling the empty 3-liter jug to full from the tap (4,3), or transferring 1 liter of water from the 5-liter jug to the 3-liter jug (1,3). Therefore, there are only two solutions to the problem:

  6. Gallon - Wikipedia

    en.wikipedia.org/wiki/Gallon

    The imperial gill is further divided into five fluid ounces, whereas the US gill is divided into four fluid ounces, meaning an imperial fluid ounce is ⁠ 1 / 20 ⁠ of an imperial pint, or ⁠ 1 / 160 ⁠ of an imperial gallon, while a US fluid ounce is ⁠ 1 / 16 ⁠ of a US pint, or ⁠ 1 / 128 ⁠ of a US gallon. Thus, the imperial gallon ...

  7. Bottled water - Wikipedia

    en.wikipedia.org/wiki/Bottled_water

    This includes 1 L of ingredient water and 0.32 L of water used in facility processes such as treatment, bottling, and maintenance. [32] Small pack facilities (facilities that package water in containers between 8 oz. and 2.5 gallons) use the least amount of water (1.26 L per 1 L), followed by mixed packaging facilities (1.46 L per 1 L).

  8. Helen H. Hobbs, M.D. - Pay Pals - The Huffington Post

    data.huffingtonpost.com/paypals/helen-h-hobbs-m-d

    From December 2011 to December 2012, if you bought shares in companies when Helen H. Hobbs, M.D. joined the board, and sold them when she left, you would have a 23.0 percent return on your investment, compared to a 15.3 percent return from the S&P 500.

  9. Portable water purification - Wikipedia

    en.wikipedia.org/wiki/Portable_water_purification

    Portable pump filters are commercially available with ceramic filters that filter 5,000 to 50,000 litres per cartridge, removing pathogens down to the 0.2–0.3 micrometer (μm) range. Some also utilize activated charcoal filtering.

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