The Geotech Geopump™ Series I and II Peristaltic Pumps are designed for single and multi-stage pressure or vacuum pumping of liquids. They operate by mechanical peristalsis, so the sample only comes in contact with the tubing. This allows for consistent sample integrity as well as easy cleaning and replacement. The Geopump is ideally suited for field sampling of shallow wells, surface water, and for laboratory use.

• Exceptional field durability
• Operate to a depth up to 29 feet (8.8 meters)
• Variable speed control
• Designed for low-flow, purge and sample, descrete, and filtration
• AC only, DC only, or AC/DC combination
• Two pumping stations available, which can be piggybacked for multi-station pumping
• Reversible flow feature for back-flushing
• Disposable and dedicated tubing means controlled costs and no decontamination issues

A peristaltic pump often is a good choice for obtaining samples collected from wells at a depth of 28 ft. or less, but the stream of water from this or other suction-lift pump should not be used when measuring DO, Eh, or other properties sensitive to oxygen contamination or volatilization.