QED Environmental Systems is the leading manufacturer of innovative environmental products.
For over 35 years their expertise has included Pumping Systems, Landfill Products, and Air Strippers.

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Low-Flow Sampling Pumps for Dedicated Groundwater Sampling Overview

Well Wizard Dedicated Sampling Pumps

Well Wizard® pumps for MicroPurge® low-flow groundwater sampling systems come in an unsurpassed range of sizes, materials, and capabilities, including models for deep sampling wells, narrow or obstructed casings, and small-volume pumps for low-yield monitoring wells. Together with MicroPurge controllers, flow cells, and accessories, they create the most reliable, cost-effective low-flow groundwater sampling system available.

Field proven pump designs and an exclusive, high-performance PTFE bladder formulation offer the reliability critical to long-term monitoring. QED was first in the industry with a standard 10-year sampling pump warranty – "no-loopholes" protection that covers the entire pump, including the bladder.

Unmatched regulatory and user acceptance

Bladder pumps, EPA-accepted for low-flow sampling, have been shown to deliver superior sample accuracy and precision in dozens of independent studies. Over 75,000 Well Wizard bladder pumps are in use – more than all other brands and types of dedicated groundwater samplers combined.

Well Wizard pumps are built for reliability, with refinements perfected for more than 20 years of continuous engineering and improvement – extra value you won't find in any other bladder pump. One example: the stainless steel used in Well Wizard pumps is electropolished to passivate the surface, delivering years more corrosion resistance than competitors' models.



docWell Wizard Sampling Bladder Pump Specification69 KB

docDedicated Groundwater Sampling System Specification95 KB


pdfWell Development Pumps1.81 MB


pdfLow-Flow Purging and Groundwater Sampling, Evolution of Technology and Standards677.39 KB

pdfDeep‐Well Groundwater Sampling284 KB


Well Wizard Groundwater Sampling Advantages

  • EPA- accepted low-flow sampling accuracy.
  • Over 75,000 Well Wizard bladder pumps are in use – more than all other brands and types of dedicated groundwater samplers combined.
  • Models for every well – low-yield, short water column, depths to 1,000' (304.8 m), casing I.D. down to 1.25" (31.75 mm).
  • Proven reliability since 1982, with the industry's first standard 10-year warranty.
  • Exclusive PTFE bladder formulation rated for years more flex life than other bladder materials.