Horizontal Directional Drilling, Tru-Line Civil, Akaroa, documentary, photography, Akaroa Water Supply Stage 3, Reticulation Upgrade, Vermeer HDD,

The Hyro-vac truck crew performing ground pressure release and ‘frac-out’ clean-up tasks. During the back-reaming process, the main objective is to mix the cuttings from the back reamer with the drilling fluid to create a slurry that can be displaced to the side of, or discharged out of, the bore hole to allow room for the product being pulled back to the HDD drilling unit.


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