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Figure 8: Pouring slurry from the augured hole back into the hole
A slightly oversized hole is drilled to the desired depth using the supplied auger. It is
important to keep the auger as straight as possible. Try not to “ream” the access
hole. The maximum space between the access tube and augured hole wall should
not be more than 2 mm.
Figure 9: Increasing the viscosity of the slurry
The excess soil from the hole is poured into a bucket and mixed with the desired
amount of water to make a good slurry mix. After the hole has been drilled to the
desired depth, the slurry mix is poured back into the hole. Sometime it is also
beneficial if the auger is used to “enhance” the viscosity of the slurry by moving the
auger several times up and down the slurry filled access hole.
