http://stovetecstore.net/index.php/
I bought a “Big Berkey” a few years ago over the net. Many on line companies sell them, just look for the cheapest price based on how many black filters you want in it, two or four.
I would not attempt to make a Berkey - purified water keeps you alive. Frankly, I believe, a homemade Berkey is not possible to eliminate the dangers a professional Berkey does. There is a reason they are No. 1 in the world to purify water. My son is a director of documentary film and has been in the African jungle many times plus the Amazon wading water with Piranha in it, and on the ice cap heading to the north pole and in Siberia in Russia several times, and he has used a Berkey for his film crew in these arm pit countries and none ever got sick from the filthy water in these places.
As backups, I have three Katadyn siphon filters for large amounts of water, not the small bottle Katadyn filter.
Wow bump