Chemicals for Killing Roots in a Drainage Pipe
Drainage pipes move waste water from buildings, and when blocks develop in the pipes, sewage can back up into the building. Tree roots can infiltrate drain lines, though certain chemicals can kill and remove the roots. Does this Spark an idea?
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Copper Sulfate
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Copper sulfate crystals work well at removing tree roots in drainage lines. As soon as the roots come into contact with copper sulfate, they withdraw and seek an alternative path. When using copper sulfate, pour 1/2 cup of the crystals into the toilet and flush until all of the crystals go down the drain. For larger outdoor drainage pipes, dig up the drain line and identify the area where the intrusion is taking place. Wear protective gear, including goggles and gloves and sprinkle a thin and even coating of the copper sulfate on the roots. Cover all of the roots on the outside of the pipe with the copper sulfate. Within two weeks, the roots should withdraw from the pipe.
Foaming Cleaners
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Foaming cleaners, such as Roebic K-77 Root Killer or Foaming Root Killer, contain chemicals that clean the pipes and remove tree roots at the same time. You pour the cleaner down the drain and follow the cleaner with more water. The cleaner starts foaming when it comes into contact with the roots. According to the manufacturer, the cleaner works within one week, killing any roots it touches.
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Root Killers
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Chemical root killers such as Root-X can kill roots quickly, but they only kill the areas of the root that they touch. As the roots enter the line, only the tips touch the water. Since the water carries the Root-X, you may only kill the tips of the roots, leaving the rest.
Non-Chemical Means
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A plumbing auger can be pushed through the drain, the tip of which slowly spins and cuts off the roots. Run the auger through the drainage pipe at least once a week, cutting off any new growth in the pipes. If you know where the roots lay in the surrounding area, then trim the roots that are visible above ground.
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References
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