This fellow does all sorts of testing on tools, oil filters, and about anything else he and his listeners can think of. Based on what I've seen of his videos, he is a reliable source for information.
This video compares various well known and some not so well known small scale filtration systems. The information could be invaluable for your emergency stash, or even for your day to day wants and needs:
Thank you very much! This will be very useful. I want to get a decent "survival kit" for the family ready this year, and I was wondering what I should do about water filtration. Very helpful!
“If we are honest, we can still love what we are, we can find all the good there is to find, and we may find ways to enhance that good, and to find a new kind of living world which is appropriate for our time.” ― Christopher Alexander
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