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2. Do You Really Need a Water Filter? - AOL

   www.aol.com/really-water-filter-144247487.html

   Distillation systems, which are also both countertop and undersink devices, work by yet another technology, heating water to the boiling point and collecting and condensing the vapor, leaving ...

3. Culligan - Wikipedia

   en.wikipedia.org/wiki/Culligan

   Culligan International is a United States based global water treatment company with a network of dealers and direct operations in 90 countries with 1,000 dealers; over 600 in North America alone, and more than 14,000 employees.

4. Reverse osmosis - Wikipedia

   en.wikipedia.org/wiki/Reverse_osmosis

   Reverse osmosis ( RO) is a water purification process that uses a semi-permeable membrane to separate water molecules from other substances. RO applies pressure to overcome osmotic pressure that favors even distributions. RO can remove dissolved or suspended chemical species as well as biological substances (principally bacteria ), and is used ...

5. Water filter - Wikipedia

   en.wikipedia.org/wiki/Water_filter

   A water filter removes impurities by lowering contamination of water using a fine physical barrier, a chemical process, or a biological process. Filters cleanse water to different extents, for purposes such as: providing agricultural irrigation, accessible drinking water, public and private aquariums, and the safe use of ponds and swimming pools .

6. Water quality was acceptable when Olympians swam in Seine ...

   www.aol.com/lifestyle/water-quality-acceptable...

   Water quality data used by Paris Olympics organizers shows that bacteria levels in the Seine River were within acceptable levels on the days that athletes swam in the famed waterway, according to ...

7. Costco raises annual membership fees for the 1st time since ...

   www.aol.com/news/costco-raises-annual-membership...

   The new fees, set to take effect Sept. 1, will boost the price of Costco's basic Gold Star membership from $60 to $65 annually, while the cost for the premium Executive membership will rise from ...