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Configuring the Bottom of the CMT Tubing (Zone 7)
17) Insert an expansion plug into each of the six channels. (Figure 17) Tighten each to a torque of 10 inch-pounds using the torque driver.
18) Slide the Guide Point Port Assembly (Figure 18) over the end of the CMT tubing and secure it to the tubing with two stainless steel clamps (Figure 19). The end of the Guide Point Port Assembly is tapered to prevent the bottom of the CMT tubing from getting snagged on a rock ledge or casing joints as it is being inserted into a borehole.
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Figure 17
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Figure 18
Figure 19
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19) If desired, an anchor (3.75” diameter) can be attached to the Guide Point Port using
a hex bolt (Figure 20). An anchor is used during installations where it is helpful to secure
the bottom of the CMT to keep it from moving during well construction. Once the tubing
has been inserted, use sand placed on top of the anchor to secure the well. This will
prevent it from being pulled up as drive casing or augers are withdrawn from the
borehole. Holes have been drilled in the anchor to allow water in the borehole to pass
through the anchor when the CMT well is inserted.
Figure 20
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