Campbell Scientific Sentek EnviroSCAN Access Tube Installation Guide - Manual (Page 29)

Installing EnviroSCAN, EnviroSM ART & Diviner 2000 access tubes
© Sent ek Pt y Lt d Page 26
Step 4 – Cleaning the access tube
The access tube must be cleaned before the top cap is installed and readings are taken. The bottom
stopper is installed after cleaning in all soils, except for very wet and saturated soils. In these soils it is
installed first to prevent the rise of water into the tube during cleaning.
To clean the tube
1. Installing an access tube in most soil types leaves a thin layer of soil coating on the inside
wall.
2. Detach the auger head and attach the Access Tube Nylon Brush Cleaning Tool to the auger
extension. Plunge it up and down the access tube using a rotating action. The brush tool
will dislodge any soil coatings.
3. Select the Access Tube Rag Cleaning Tool. Fold the cleaning tool to its full length and
secure it by sliding the locking bracket into place.
4. Insert a clean cotton cloth into the eyelet and saturate it with methylated spirits.
5. Insert the cotton cloth and move the tool up and down the access tube to clean any
remaining soil particles from the wall of the access tube. The methylated spirits will also
accelerate the drying process on the inside of the tube if the removed soil is wet.