How to make a gravity bio-water filter
Description: Saw a couple people doing this, but it always seemed that they were making it way more complicated than it had to be. I attempted to make the cheapest, simplest build for a functioning water filter, check out what I've done and let me know what you think. If you would like to see more videos like this, check out my youtube page at usersavage1r.
savage1r Uploaded 07/18/2012