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Direct push sampling has quickly become a popular way to obtain groundwater samples. However, sampling within drivepoints requires a narrow diameter sampler. Solinst offers several options for this specific sampling application.
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The Peristaltic Pump uses the suction lift principle. Suitable for 1/4" (6 mm) ID or larger diameters. The Peristaltic Pump provides a regulated and steady flow. It works effectively up to 33 ft. (10 m) at sea level.
The WaTerra Pump operates as an inertial pump. A check valve and tubing, is raised and lowered to lift a sample. The SS10 footvalve suits wells as narrow as 1/2" (12 mm) ID and works to depths of 74 ft. (25 m).
The 1/2" (12 mm) dia. stainless steel bailer works very well in the 615N. The bottom emptying device permits a regulated, steady flow.
Water levels can be measured in any of the drive-points described, using a Solinst Model 102, or the Narrow Tape Solinst Model 101 or 101M Water Level Meter for the most accurate hydraulic head measurements.
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