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Tag: Ditch Witch OnGrade system
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Laser straight HDD Ditch Witch’s OnGrade system cuts the costs and complexity of gravity flow installations By Tom Jackson  Horizontal directional drilling’s advantages are well known, but the one job that’s proven difficult is gravity flow installations. Utility companies require the slope of these bores to track to within 1 to 2 percent of […]
June 25, 2010
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