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Water Quality/cryptosporidia

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Question
Thanks for taking my question. I am a backpacker and have noticed that there are backpacking filters rated at NSF standard 53 for cryptosporidia removal but only have a 2 micron pore size. Much of the literature I read states Crypto needs a one micron filter. Do you have an answer for this discrepancy?
Thanks again.

Steve Z.

Answer
Hi Steve;
Thanks for your question. The answer to the discrepancy is semantics. Your filter states (according to your info) that it is rated "at" NSF standard 53.Not "by" the NSF at standard 53. If it does carry the genuine NSF seal and also the WQA (Water Quality Association) seal for performance then I don't know the answer.You can go to the NSF.org (National Sanitation Foundation)and verify that your filter has been tested.If it isn't then maybe you should send the filter packing! Good Luck and happy backpacking!

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Fred E. Brunetti CWSV

Expertise

My field of expertise is in domestic water treatment. I am retired and have 28 years of experience in the water treatment field. I have earned the designation of Water Specialist, level five, from the Water Quality Association.I can offer help in the solution for private wells` problems as to `point of entry` and `point of use` treatments. these would include,disinfection,conditioning,and purification for drinking including reverse osmosis technology. Problems concerning well pumps,or plumbing or well drilling are out of my field,as well as commericial,industrial or municipal water treatment. I prefer to limit questions to the average homeowner`s use.Since retiring I have added consultation on the care and ,maintenance of domestic water treatment systems. These include filtration, conditioning/softening,chemical feed, and drinking water systems.

Experience

over 28 years testing private wells and application of various water treatment systems for a 65 year old water treatment company.Now retired and doing independent water consulting.BR>
Organizations
Water Quality Association

Organizations
Water Quality Association

Education/Credentials
WATER QUALITY ASSOCIATION CERTIFICATION AS WATER SPECIALIST V

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