Attaching the Standard Wellhead
(after the well has been installed)

23) After the well has been built, cut the CMT tubing to the final elevation. You may choose to finish your CMT installation off above ground surface. If so, you can leave the CMT stick-up as is and install the standard wellhead or “house” the CMT inside a cut length of 2” dia. PVC riser pipe (not supplied). On the underside of the wellhead cap is a groove which is designed to allow a 2” dia PVC riser pipe to “key” into the wellhead. Locate Channel 1 and slide the Standard Wellhead over the tubing (Figure 22). Remember, Channel 1 has the identifier on the outside of the tubing. Secure the wellhead to the CMT tubing by tightening the hex screw on the side of the wellhead.
 

Optional Flow Control Monitoring Assembly

Under flowing artesian conditions or for vapor sampling, the CMT can be fitted with a special flow control monitoring assembly to allow the user to collect a sample, measure hydraulic or pneumatic pressure, and prevent uncontrolled flow from the well.