Solinst Drive-Point Piezometers make ideal permanent or temporary, inexpensive wells to monitor groundwater, soil and gas. While costs are kept low, sample integrity is maintained. The piezometer tip and screen are stainless steel to obtain high quality samples, and a barbed fitting allows a sample tube to be attached. Easily install using a manual slide hammer.
The Model 615 Drive-Point Piezometer is designed as an affordable method to monitor shallow groundwater and soil vapor in suitable conditions.
The Drive-Points attach to inexpensive 3/4' (20 mm) NPT steel drive pipe which is widely available through local plumbing and hardware stores.
Solinst Drive-Point Piezometers are most often installed as permanent well points. They can also be used for short term monitoring applications.
High quality samples can be obtained if polyethylene or Teflon lined tubing is attached to the stainless steel drive point. Groundwater sampling and hydraulic head measurements can be taken within the tubing using small diameter equipment, as described here.
Solinst Drive-Point Piezometers can be driven into the ground with any direct push or drilling technology, including the Manual Slide Hammer shown below. To avoid clogging or smearing of the screen during installation, a shielded version is also available.
A heavy duty drive head is used, on which the slide hammer impacts, and a tubing by-pass ensures that the tubing does not get damaged during installation.
The inner barbed fitting allows connection of 5/8” OD x 1/2' ID (16 mm x 12 mm) LDPE or Teflon sample tubing. This prevents sample water from contacting the steel extension rods, and maintains high sample integrity, even when inexpensive carbon steel extensions are used.
Ideal for soil vapor sampling. Where an air-tight connection is most desirable, the compression fitting option allows users to attach 1/4” (6 mm) sample tubing directly to the top of the screened portion of the drive-point.
The 615S shielded drive-point has a single use, 1-1/2” (38 mm) dia. shield to avoid smearing and plugging of the screen during installation. The strengthened connector at the top of the drive-point acts as an annular seal, which avoids contamination from higher levels in the hole.
The 615 N, designed without a tubing barb, is to be used for water level measurements. This saves money and provides better access for Water Level Meters.