B.4 removing access tubes – Campbell Scientific EasyAG Probe for Soil Volumetric Water Content Profiles User Manual
Page 36
Appendix B. Tube Installation
Ensure that the sealing gasket is in good condition
and is positioned correctly.
WARNING
Remove the stabilization brace pins by turning them and pulling upward.
Tighten the Fair Rite
TM
bead into place.
B.4 Removing Access Tubes
Removal of access tubes is a relatively easy process in sandy soils. It may be
done with the electronics in place. Simply excavate a little soil from near the
surface, grab the probe access tube or top cap, give a couple of twists, and pull
upward.
In heavy clay soils, removal of the EasyAG
TM
probe may require a greater
depth of soil to be excavated before it is possible to remove it by hand.
To assist in this, a mattock may be used. Apply gentle levering pressure
underneath alternate sides of the top cap. Move the access tube a little at a
time, adding sufficient height underneath the mattock as required.
B-12
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