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2. Self-cleaning surfaces - Wikipedia

   en.wikipedia.org/wiki/Self-cleaning_surfaces

   Self-cleaning surfaces are a class of materials with the inherent ability to remove any debris or bacteria from their surfaces in a variety of ways. The self-cleaning functionality of these surfaces are commonly inspired by natural phenomena observed in lotus leaves, gecko feet, and water striders to name a few.

3. Water dispenser - Wikipedia

   en.wikipedia.org/wiki/Water_dispenser

   A water dispenser, sometimes referred to as a water cooler (if used for cooling only), is a machine that dispenses and often also cools or heats up water with a refrigeration unit. It is commonly located near the restroom due to closer access to plumbing. A drain line is also provided from the water cooler into the sewer system.

4. Lotus effect - Wikipedia

   en.wikipedia.org/wiki/Lotus_effect

   The self-cleaning property of ultrahydrophobic micro-nanostructured surfaces was studied by Wilhelm Barthlott and Ehler in 1977, [4] who described such self-cleaning and ultrahydrophobic properties for the first time as the "lotus effect"; perfluoroalkyl and perfluoropolyether ultrahydrophobic materials were developed by Brown in 1986 for ...

5. Water Cooler: Summer cleaning tips

   www.aol.com/news/water-cooler-summer-cleaning...

   Aug. 5—Some chores require a little extra attention in the summer. Here are a few tips for cleaning your home this season. Dust fans and vents — With the windows closed because of the smoke ...

6. Backwashing (water treatment) - Wikipedia

   en.wikipedia.org/wiki/Backwashing_(water_treatment)

   Slow sand filters and self-cleaning screen filters employ mechanisms other than backwashing to remove trapped particles. To keep water treatment filters functional, they have to be cleaned periodically to remove particulates. Ineffective backwashing is one of the main reasons that water treatment filters fail.

7. LifeSaver bottle - Wikipedia

   en.wikipedia.org/wiki/LifeSaver_bottle

   The process of filtering the water takes 20 seconds, allowing for 0.71 litres (1.5 pints) of water to be filtered. [4] Once a filter has reached its limit, it will not allow contaminated water to be drunk. [4] The LiveSaver bottle has been used by soldiers for drinking water as well as cleaning wounds. [2] [3] [4]