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3
Posted on 10/8/20 at 7:56 am to jeffsdad
quote:
well I've never understood how they make 90 degree turns underground...
Look up horizontal directional drilling. You’ll be amazed at how flexible steel pipe is over long distances.
Posted on 10/8/20 at 8:14 am to jeffsdad
Its not a 10' long 90 degree turn, it takes 100' or so
Posted on 10/8/20 at 9:24 am to jeffsdad
quote:
well I've never understood how they make 90 degree turns underground...
They use flexible ball joint drive shafts that allow for steering of the drill.
It doesn't really make a 90 degree turn it makes a curved turn
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