Convenient Drive-Points

solinst drive point piezometers

615 Drive-Point Piezometers

Model 615 Drive-Point Piezometers consist of a 3/4" diameter perforated stainless steel body with a 50 mesh cylindrical screen inside. The stainless steel body connects to inexpensive 3/4" (20 mm) steel NPT drive pipe. Standard lengths are 6" and 1 ft. (15 and 30 cm). Drive-Point Piezometers can be installed to depths of 25 ft. in suitable soils. This can be done with a Manual Slide Hammer. A convenient tubing bypass assembly is available for installing piezometers with tubing connected.

The standard 615 has a 5/8" OD barbed fitting that allows a sample tube to be attached for obtaining groundwater samples. The 615 C provides an airtight connection with a 1/4" compression fitting, ideal for vapour sampling. The 615 N, designed without a tubing barb, is most ideal for water level measurements using Water Level Meters. To ensure that the screen does not clog or smear, 615 S shielded versions are available for sites with high silt or clay content.


solinst standpipe piezometers

601 Standpipe Piezometers

Model 601 Standpipe Piezometers are composed of a 3/4" diameter PVC body, which is perforated to expose the preformed Vyon filter inside. The PVC tip connects to plain end 3/4" Sch. 40 PVC riser pipe with push-fit couplings. Standpipe Piezometers are available in standard lengths of 6", 1 ft., 2 ft. and 3 ft. (15 cm, 30 cm, 60 cm and 90 cm).

The Standpipe Piezometer is primarily used to provide a filtered inlet point when backfilled in place within a pre-drilled hole or test pit. The pointed tip can also be pushed into very loose sands at the base of a borehole, stream, or into loose tailings pond sediments.. Standpipe Piezometers are great for water level monitoring, permeability measurements, slope stability investigation, dewatering operations, air sparging and metals sampling.


solinst drive point profiler

660 Drive-Point Profiler

The Model 660 Drive-Point Profiler is a 1.75" (45 cm) diameter AW stainless steel tip. It has a row of screened inlet holes set around the circumference, that lead to a single stainless steel fitting where LDPE or Teflon sample line connects. The Profiler is advanced using a drill rig, and the tip is flushed using a peristaltic pump connected to the sample line, to eliminate clogging. Once the desired depth is reached, the peristaltic pump is reversed to collect a groundwater sample.

The Drive-Point Profiler enables the collection of multiple groundwater samples from a single drive/drilling location. This results in high resolution groundwater sampling, contaminant versus depth profiling and detailed plume delineation. A grout tip version of the Drive-Point Profiler is available for applications where the borehole needs to be sealed following sampling.