http://www.vaporooteraustralia.com.au/blog/remove-tree-roots-with-vaporooter
http://www.vaporooteraustralia.com.au/blog/tag/sanafoam-vaporooter-ii
http://www.macwater.com.au/vaporooter-chemical-sewer-root-control.htm
Sounds like the stuff. Though neither new nor quick.
