Campbell Scientific Sentek EnviroSCAN Access Tube Installation Guide - Manual (Page 45)

Installing EnviroSCAN, EnviroSM ART & Diviner 2000 access tubes
© Sent ek Pt y Lt d Page 42
Step 4 – Insert the access tube
To install the access tube in the slurry mixture
1. Insert the sealed access tube into the augered hole. Note: At least 4 cm of extra access
tube must protrude from the hole for top cap fitting.
2. If more than 4 cm of tube is protruding and you cannot auger any deeper, mark the point 4
cm above the soil surface on the access tube with a marking pen.
3. Remove the access tube from the hole and cut off the excess access tube if necessary.
4. Pour the slurry into the hole until it fills approximately a third to half of the hole.
5. Insert the sealed end of the access tube into the slurry.
6. Push the tube slowly through the slurry allowing air bubbles to escape and the slurry to flow
out of the hole. Note: When installing access tubes longer than one metre, stop pushing the
tube into the hole when approximately 30 cm (1 ft) of tube is left above the hole. Wait a few
minutes to let air escape before slowly pushing in the remainder of the tube.
7. If the access tube starts to float back up out of the slurry, take two tent pegs and push them
into the soil approximately 50 cm (20 inches) away from either side of the access tube.
Stretch thin wire between the pegs and over the centre of the access tube to hold the tube in
place while the slurry dries.
8. Allow overflow slurry to dry for a few hours.