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!
“Every human activity is an opportunity to bear fruit and is a continual invitation to exercise the human freedom to create abundance...” ― Andreas Widmer
Just let me do the talking. Ahem ... so ... you see ... we have this tiny ad...
the permaculture bootcamp in winter (plus half-assed holidays)