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1900 Common Soil Water Samplers

A 1900 Soil Water Sampler, with detail inset, showing neoprene tubing sealed with a Clamping Ring.

Soil Water Samplers, also called suction lysimeters, are used to collect water samples in the soil profile. The samplers are installed at the desired depth and left in the soil, allowing periodic sampling to occur with minimal disturbance of the soil. The samplers consist basically of a porous ceramic cup and a sample collection tube. A vacuum pump is used to create a vacuum in the sampler, which draws water from the soil matrix through the ceramic cup and into the sampler. The water sample can then be extracted from the collection tube and taken to the lab for chemical analysis.

1900 Soil Water Samplers

The Model 1900 Soil Water Sampler is a large-volume sampler designed for near-surface installation at depths ranging from 15 cm (6") to 1.8 m (6'). The unit consists of a 4.8 cm (1.9") outside diameter PVC tube, a porous ceramic cup with a 200 kPa (2 bar) air-entry value, and a Santoprene stopper. Neoprene tubing is used as an access port for sample extraction and evacuation. Clamping rings slip over the folded Neoprene tubing to seal the sampler after evacuation. An extraction kit is required for sample retrieval and a vacuum pump is required to evacuate the sampler.

A Model 2005G2 Vacuum Hand Pump and Model 1900K3 1000 mL Extraction Kit or Model 1900K2 50 mL Extraction Kit are often used for routine operation. Model 0230 Soil Augers can be used for coring a hole to accept the samplers.

cross-section of a 1900 Soil Water Sampler installed in soil.

Details

Product No.	Description	Length	Weight
1900L06-B02M2	SOIL WATER SAMPLER	15 cm (6")	0.20 kg
1900L12-B02M2	SOIL WATER SAMPLER	30 cm (12")	0.27 kg
1900L24-B02M2	SOIL WATER SAMPLER	61 cm (24")	0.38 kg
1900L36-B02M2	SOIL WATER SAMPLER	91 cm (36")	0.48 kg
1900L48-B02M2	SOIL WATER SAMPLER	122 cm (48")	0.60 kg
1900L60-B02M2	SOIL WATER SAMPLER	152 cm (60")	0.70 kg
1900L72-B02M2	SOIL WATER SAMPLER	183 cm (72")	0.92 kg

Accessories

Product No.	Description	Weight
0930W050	SILICA FLOUR, 50 lb bag Used to provide good hydraulic connection between soil and porous ceramic cup when installing Soil Water Samplers.	22.68 kg
1900K2	EXTRACTION KIT, 50 mL	0.05 kg
1900K3	EXTRACTION KIT, 1000 mL	0.41 kg
2005G2	VACUUM TEST HAND PUMP, with gauge	0.57 kg

A hand-operated vacuum pump used to provide a vacuum for the 1900 sampler.
2005G2
Vacuum Test Hand Pump
(shown with tubing and
service cap provided for
servicing tensiometers)

Soil Water Sampling Systems - Complete

Product No.	Description	Length
1900L06-B02M2	SOIL WATER SAMPLER	15 cm (6")
1900L12-B02M2	SOIL WATER SAMPLER	30 cm (12")
1900L24-B02M2	SOIL WATER SAMPLER	61 cm (24")
1900L36-B02M2	SOIL WATER SAMPLER	91 cm (36")
1900L48-B02M2	SOIL WATER SAMPLER	122 cm (48")
1900L60-B02M2	SOIL WATER SAMPLER	152 cm (60")
1900L72-B02M2	SOIL WATER SAMPLER	183 cm (72")
2005G1	VACUUM HAND PUMP, without gauge
2005G2	VACUUM HAND PUMP, with gauge
2006G2	PRESSURE VACUUM HAND PUMP with gauge
1900K3	EXTRACTION KIT - 1,000 mL
Silca 200G	Unimin, silica powder, fine milled 75 micrometre, 20 kg
Bentonite Active Gel 150	Unimin, Bentonite, sodium activated strongly swelling, 20 kg

Auger System for Soil Water Sampling

Part No.	Description
ICT.EXT0.6	40 mm x 0.6 m Steel Extension rod, fine thread
ICT.THSF	T-Handle standard, fine thread
ICT.SPIRAL48	50 mm x 1.0 m Spiral Auger, fine thread
ICT.SHELL48	48 mm x 1.0 m Soil (Shell) Auger, fine thread
ICT.SHELL50	50 mm x 1.0 m Soil (Shell) Auger, fine thread
ICT.SPIRAL50	50 mm x 1.0 m Spiral Auger, fine thread

Syringe and tube used to extract sample from 1905.
1900K2, 50 ml Extraction Kit

Flask with tube used to extract sample from 1905.
1900K3, 1000 ml Extraction Kit

Applications	Features
Monitor nitrogen movement (especially in sandy soils)	Large volume sampler
Sample leachates: insecticides, herbicides	Standard lengths from 15 cm to 183 cm