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 include: DT22, DT325, DT37, DT45, and DT60.
The DT325 Soil Sampling System, designed for use with 3.25 in. probe rods, uses a unique combination of cutting shoe, sheath, and liner retainer to allow efficient recovery of samples in formations ranging from plastic clays to saturated sands. It’s designed to quickly recover samples well below the water table. Problems with liner failure or lodging are virtually eliminated with this system.
Liners for these systems are clear PVC with an integral core catcher fused to one end. This configuration maximizes sample recovery while minimizing entrance losses. It’s also proven to be very robust in use. The DT325 Liner Cutter, permits safe, simple, and quick cutting of the liners for sample logging. These Soil Sampling Systems are robust and durable.
A Liner Retainer, with threads identical to the Sheath Drive Head, is stronger and prevents the retainer from fusing to the Sample Sheath. The thread pattern on the Liner Retainer also made it possible to put the same thread on both ends of the Sample Sheath which allows for more even thread wear when the sheath is turned end-for-end thus extending the sample sheath life.
DT325 Sample Sheath
The simple design of the DT325 Sample Sheath, which is available in 3 lengths, features the same internal thread pattern on both ends. This allows the user to maximize the thread life by rotating which end of the sample sheath is towards the top of the tool. There is no window sheath option for this system.
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3.25 DRIVE CAP THDLS GH60 SERIES
MN: 201275
3.25 RHML BOX SPRING ASSIST LIFT CAP ASM
MN: 235367
3.25 RHML SWIVEL LIFT CAP, BOX
MN: 207272
DT325 CENTERING DRIVE CAP 1.25 in.
MN: 202145
MN: 208053
1.25 in. Light-Weight Center Rod (60 in.)
MN: 205232
1.25 in. Light-Weight Center Rod (48 in.)
MN: 203988
MN: 201385
DT325 DRIVE HEAD 1.25 PIN W/ CHK BALL
MN: 218833
MN: 205110
MN: 205099
MN: 205264
MN: 205265
DT325 LINER SPACER REFILL (12 in.)
MN: 600443
MN: 205663
DT325 LINER PVC 60 in. W/ CC (42)
MN: 600422
DT325 LINER PVC 48 in. W/ CC (42)
MN: 600423
MN: 600424
DT325 LINER PVC 60 in. W/O CC (42)
MN: 601005
DT325 LINER PVC 48 in. W/O CC (42)
MN: 601004
MN: 205017
MN: 205098
MN: 208472
O-RING DT325 LINER RETAINER (25)
MN: 600428
MN: 201325
MN: 201185
MN: 201446
MN: 202313
MN: 202363
MN: 205424
DT325 CUTTING SHOE ASM EXP 1.75ID 3.25OD
MN: 205426
DT325 CUTTING SHOE 1.85 in. ID LONG
MN: 205449
DT325 DISCRETE PT 1.25 PIN 1.85 in. OD
MN: 205450
DT325 CUTTING SHOE 1.75 in. ID
MN: 205100
DT325 DISCRETE PT 1.25 PIN 1.75 in. OD
MN: 205279
O-RING DT325 SOLID DRIVE PT (25)
MN: 202366
MN: 204499
HYD EXTRUDER ADAPTER DT325 PIN
MN: 204681
MN: 600232
MN: 205182
MN: 205299
RG HANDLE ASM 3.25 GH60 SERIES
MN: 201277
MN: 206239
3.25 DRIVE CAP THDLS GH60 SERIES
MN: 201275
3.25 RHML BOX SPRING ASSIST LIFT CAP ASM
MN: 235367
3.25 RHML SWIVEL LIFT CAP, BOX
MN: 207272
DT325 CENTERING DRIVE CAP 1.25 in.
MN: 202145
MN: 208053
1.25 in. Light-Weight Center Rod (60 in.)
MN: 205232
1.25 in. Light-Weight Center Rod (48 in.)
MN: 203988
MN: 201385
DT325 DRIVE HEAD 1.25 PIN W/ CHK BALL
MN: 218833
MN: 205110
MN: 205099
MN: 205264
MN: 205265
DT325 LINER SPACER REFILL (12 in.)
MN: 600443
MN: 205663
DT325 LINER PVC 60 in. W/ CC (42)
MN: 600422
DT325 LINER PVC 48 in. W/ CC (42)
MN: 600423
MN: 600424
DT325 LINER PVC 60 in. W/O CC (42)
MN: 601005
DT325 LINER PVC 48 in. W/O CC (42)
MN: 601004
MN: 205017
MN: 205098
MN: 208472
O-RING DT325 LINER RETAINER (25)
MN: 600428
MN: 201325
MN: 201185
MN: 201446
MN: 202313
MN: 202363
MN: 205424
DT325 CUTTING SHOE ASM EXP 1.75ID 3.25OD
MN: 205426
DT325 CUTTING SHOE 1.85 in. ID LONG
MN: 205449
DT325 DISCRETE PT 1.25 PIN 1.85 in. OD
MN: 205450
DT325 CUTTING SHOE 1.75 in. ID
MN: 205100
DT325 DISCRETE PT 1.25 PIN 1.75 in. OD
MN: 205279
O-RING DT325 SOLID DRIVE PT (25)
MN: 202366
MN: 204499
HYD EXTRUDER ADAPTER DT325 PIN
MN: 204681
MN: 600232
MN: 205182
MN: 205299
RG HANDLE ASM 3.25 GH60 SERIES
MN: 201277
MN: 206239