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Carlton from Morton writes

How does Hi-Yield Root Killer get into the field line if on a septic tank? Does it float or will it settle in the tank?


The product label for Hi-Yield Root Killer states, "This product may also be used through a distribution box direct to septic tank drainfield.  Add sufficient water by hose or pail to carry crystals to point of root penetration or blockage."  For technical questions regarding this product, you may wish to contact the manufacturer directly at (855) 270-4776, or via email at

Answer last updated on: 04/18/2021

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