Equipment

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Tough trenchless crossing effort.

A continuation of the discussion about a 22-W drill rig.

A visit with a geothermal drilling firm, Mid-State Construction Co. in Livingston, Tenn.

A visit with Somerset Well Drilling, Westover, Md.

A look back at the introduction of black polyethylene pipe in pump installations.

"The primary function of the pressure tank in a pumped water system is to protect the pump motor."

The distinguishing feature of the dual-rotary (DR) drill rig is a lower rotary drive, which is used to independently advance casing up to 40 inches, depending on the drill model.

Regardless of purpose, almost all water wells must be provided with a means of protecting the borehole and provision made for the entrance of water from surrounding aquifers. This article discusses casing and screen materials in common use in the word today. It also sets forth the factors to be considered in their choice.