Geoprobe® brand Dual Tube Sampling Systems are efficient methods of collecting continuous soil cores with the added benefit of a cased hole. Our line of Dual Tube Soil Sampling Systems drill rods include: DT22, DT325, DT37, DT45, and DT60.
Dual tube sampling uses two sets of probe rods to collect continuous soil cores. One set of drill rods is driven into the ground as an outer casing. These drill rods receive the driving force from the hammer and provide a sealed hole from which soil samples may be recovered without the threat of cross contamination.
The second, smaller set of probe rods are placed inside the outer casing. The smaller drill rods hold a sample liner in place as the outer casing is driven one sampling interval. The small drill rods are then retracted to retrieve the filled liner. Expendable cutting shoes are used when performing multiple tasks in the borehole such as monitoring well, soil vapor and sparge installations.
2.25 DRIVE CAP THDLS HD GH60 SERIES
MN: 206249
2.25 DRIVE CAP THDLS GH40 SERIES
MN: 206187
MN: 212548
MN: 601006
MN: 209428
DT22 LINER DRIVE HEAD 1.25 PIN
MN: 213916
DT22 DRIVE HEAD ASM WITH DETENT
MN: 228499
MN: 235306
MN: 235304
MN: 235305
MN: 235338
MN: 235340
MN: 205516
MN: 204767
MN: 204766
MN: 206706
MN: 206588
MN: 204777
DT22 CUTTING SHOE 2.375 in. OD
MN: 204774
MN: 212678
MN: 215278
MN: 206471
MN: 204236
MN: 204237
1.25 in. Light-Weight Center Rod (60 in.)
MN: 205232
1.25 in. Light-Weight Center Rod (48 in.)
MN: 203988
1.25 in. Light-Weight Center Rod (36 in.)
MN: 209949
MN: 205743
O-Ring MC5 Pt / DT22 Pt / SP16 SS Screen
MN: 213918
O-RING DT22 EXP CTNG SHOE (50)
MN: 213913
MN: 213915
DT22 LINER DRIVE HEAD BOLT (20)
MN: 202221
DT22 DETENT DRIVE HEAD REBUILD KIT
MN: 231158
DT22 DRIVE CUSHION ASSIST HANDLE
MN: 210804
MN: 213909