Hi-Yield Killzall Weed And Grass Killer Concentrate
- This root and fungus killer breaks down and dissolves root and fungus under ground..
- Great for clearing out underground areas of sewer lines, septic tanks and drain fields..
- Apply 1/3 of the container into a toilet bowl. Flush and repeat until all crystals have flushed..
- Kills the roots that have entered the pipe lines without harm to trees and shrubs outside the sewer..