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WebBladder pumps, EPA-accepted for low-flow sampling, have been shown to deliver superior sample accuracy and precision in dozens of independent studies. Nearly 80,000 Well Wizard® bladder pumps are in use — more than all other brands and types of dedicated groundwater samplers combined. Well Wizard® Bladder Pump Advantages 1. WebBoth pumps have a maximum lift capacity of 90 m (300 feet), and flow rates are adjustable from less than 100 mL/min to over 5 L/min, depending on pump lift. The QED Model 400 controller is a microprocessor-based controller and was used to control the flow of compressed nitrogen, obtained from a cylinder at the wellhead, to the bladder pump. hydropress 150 liter
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