5.6K views · 70 reactions | SUNMOY RCD500 reverse circulation drilling rig; Reverse circulation drilling is really a form of excavating. The equipment cleans out a hole in the ground as it rotates. The drill cuttings are sucked up into the machine similar to dust being sucked into a vacuum cleaner. It is through this method that large diameter, high capacity wells have become more feasible for municipalities, industry, irrigation and other large water users. | SunmoyTechnology | Facebook
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