Geotech SS Electrical Submersible Sampling Pumps

Geotech SS geosub pump & controller 

The SS Geosub sampling pump is the most versatile single stage 12 Volt DC pump in the industry. Designed with all stainless steel components, the SS Geosub allows you to sample with confidence even in the harshest well conditions. The SS Geosub Pump operates with the Geotech SS Geosub Controller.



  • Most versatile pump in the industry, sample from depths to 200 feet (61m)

  • Low flow sampling rates to 10 mL/min

  • User enabled dry-run protection

  • Easy to decontaminate

  • Optional Drop Tube Assembly for greater depth

  • Field replaceable motor lead kits available

  • Optional portable reel systems or dedicated well systems available to meet your needs

  • Optional DC to AC Inverter can be connected to a
    vehicle battery

Grundfos Redi-Flo2

The Grundfos Redi-Flo2® Electrical Submersible Pump provides smooth, uninterrupted water flow during groundwater sampling or conducting aquifer tests to depths down to 280 ft. (85m). Both high flow rates needed for purging and low flows recommended for sampling are achieved with the same pump. 
Designed for long-term reliability in dedicated monitoring wells, the Redi-Flo2® provides optimal sample quality with either traditional purging prior to sampling or low draw-down passive sampling when operated with the Redi-Flo VFD (Variable Frequency Drive).


  • Chemically inert materials Maximum sample integrity and easy decontamination

  • 1.8 inch (4.6cm) diameter Easy access into 2" (5cm) or larger wells

  • Flow rates range from 8 GPM (30 LPM) to as little as 100ml ⁄min Controlled with the simple push of a button

  • Low velocities and agitation Ideal for sampling and purging

  • Portable solid state converter Eliminates the need for control valves

  • Continuous flow Ensures a cleaner, simpler sample catch

  • Dedicated or Portable configurations available