UGT Suction probe with ceramic tip, without standpipe

The suction probes S11 to S13 do not have a standpipe; they consist only of a ceramic tip (P80; Ø20 x 50 mm), which is firmly glued into an acrylic adapter. The ceramic tip is connected to a suction hose via the acrylic adapter. The suction hose, available in lengths of 100, 200 or 300 cm, allows sampling at variable installation depths. Both the hoses themselves and the hose connections are made of inert PE to prevent the samples from being contaminated. The suction hose is attached to a separate sampling bottle.

How it works

By applying a vacuum, the soil water is sucked out of the soil through the suction cup and collected in the connected sampling bottle. The suction probes are suitable for both permanent constant vacuum in combination with a suction probe system and for a single application of a vacuum. The prepared hose connections allow operation with all commercially available hand pumps, electronic pumps and vacuum control units.

Use of a groove auger during installation

For optimal installation of the suction probe in the soil, we recommend using a suitable groove auger. This tool is used to pre-drill a hole with a diameter that is slightly smaller than that of the suction probe. A diameter that is too large can favor preferential flow paths along the suction probe, causing additional water to be directed to the suction cup. This could falsify the measurement results. The appropriate pre-drill not only makes installation easier, but also ensures a proper connection between the suction probe and the surrounding soil, which ensures precise sampling.

Further general information can be found at suction probe.