The 6ft telescope size of screen should fit in a ______ standard pipe.
When constructing a gravel or sand packed well the following materials are accepted:
What can cause channeling of slurry to happen:
What should be removed after the casing has been sunk to the depth at which the bottom of the screen is be set:
A surge plunger should not be used unless a sufficiently free flow of water has been established so that the tool runs smoothly
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