Well, I've been thinking about this for a while... (& did some of it too!! lol - With success, I must say!:))
But it was good to come across an 'official' guide with more tips! :)
/not for reading before breakfast, I guess!!:)/
http://www.motherearthnews.com/Do-It-Yourself/2007-12-01/How-to-Unclog-Drains-Without-Chemicals.aspx - Very awesome! :)