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    Suction Lysimeters

Suction Lysimeters

  • SW-070-540, SW-071-260, SW-074-8, SW-074-4
  •  All welded 304 stainless steel construction
  • No glue or plastics
  • Suitable for organics and most inorganics

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Suction lysimeters collect pore water from unsaturated soil


Description

Suction lysimeters collect pore water from unsaturated soil. After installation below ground level, vacuum is applied to the lysimeter through tubing leading from the lysimeter to the ground surface. The negative air pressure created inside the lysimeter draws pore water into the lysimeter through the porous, stainless steel section of the lysimeter. The pore water is transported to the surface by applying positive pressure to the lysimeter through a second tube. At the surface the pore water is collected in a collection bottle. Suction lysimeters perform best in moist soil and below the water table. Pore water collection from relatively dry formations (pressure potential less than -500 mbar) is difficult.


Features

  •  All welded 304 stainless steel construction
  • No glue or plastics
  • Suitable for organics and most inorganics
  • Separate upper chamber for sample storage (models SW-070 and SW-070A)
  • One way stainless steel valve prevents back flow from storage chamber to sample chamber (models SW-070 and SW-070A)
  • Strong and durable.
  • Suitable for installation at great depths (models SW-070 and SW-070A)
  • 600 mbar bubbling pressure
  • Optional battery powered vacuum pump (SW-073)


Dual chamber models only

  • Separate upper chamber for sample storage
  • One-way stainless steel valve prevents back flow from upper storage chamber to sample chamber
  • Suitable for installation at great depths


Models

SW-070-540 Dual Chamber

SW-071-260 Single Chamber

SW-074-8 Horizontal Small Single Chamber

SW-074-4 Small Single Camber



SW-070-540
SW-071-260
SW-074-8
SW-074-4
Total length (in)18.036.010.74.5
Porous steel length (in)3.73.73.7
3.7
Outside diameter (in)2.02.0
2.0
.875
OD SS outlet tubing (in).250.250
.250
.250
Length SS outlets (in)4 and 6.54 and 6.5
4 and 6.5
4 and 11
Storage volume (ml)5751000260NA