Not all Filters are the Same!

World Water Day – Wednesday, March 22, 2017
March 19, 2017
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March 22, 2017
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Not all Filters are the Same!

To remove bacteria (see the attached figure) your filter must be able to remove particles 0.2 microns or larger (a 0.2 micron absolute filter does this; absolute implies the largest size particle the filter lets through, opposed to a 0.2 micron nominal filter, which implies the smallest particle the filter is capable of removing; there is a big difference between these two definitions!). Similarly, to remove viruses the filter must remove particles 0.01 microns or larger. Ultrafiltration (UF), nanofiltration (NF), and reverse osmosis (RO) are capable of doing this; however, RO also reduces the good minerals.

Clifford Yantz
Clifford Yantz
Hydrogeologist and the Founder of Wells For The World, Inc., with 27 years experience, for years has envisioned establishing a charity to provide those without access to clean drinking water the resources they need to not only sustain their lives, but to allow them to flourish and reach their full potential. I have performed hydrogeologic investigations at hundreds of sites and specialize in the review and interpretation of hydrogeologic data to determine groundwater flow characteristics and have designed or helped design dozens of groundwater extraction systems. WFTW Inc., is where I can share my love for hydrogeology, my love for people and my love for faith by providing those without access to clean water a “cup of cold water."

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