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EP Systems Pumps httpJ/www neepsystems com/Pages/EconoPump htmt <br /> Principles of Operation. <br /> The EconoPump utilizes a liquid-driven het pumping <br /> system Water is continuously circulated at relatively high <br />' pressure through multiple venturis to create a vacuum at <br /> each het inlet port m the Multi-Jet Manifold This creates a <br /> high vacuum that is used to lift water from the extraction <br />' wells The het is mounted either in the well, or above <br /> grade, depending on the drawdown level The intake can <br /> be the end of the pipe or, if free product is present, the <br /> tunique Conetrol Snorkel, which creates a suction break at <br /> the point needed to hold free product for recovery <br />' EconoPump is indicated for the following conditions <br /> - Drawdown level 22' (6 7 m) or less (Downhole bets can <br />' be used to pump to 75' [22 9 m] ) <br />' • Individual well flows between 0 1 to 9 gpm(0 02-2 <br /> m3/hr), depending on total head loss <br />' • Remediation sites requiring two or more recovery wells <br /> • Precision drawdown required <br /> o Maxm= individual well yields <br /> o Sngnnficant free product present in wells The steady <br /> drawdown feature allows for precise placement of product <br /> recovery pumps and elimination of an od/water separator <br /> i • System discharge is to a ShallowTray low profile air <br /> stripper for treatment <br /> Standard Models <br /> EconoPump EJ-3 for up to three wells and EconoPump <br /> EJ-5 for up to 5 wells Each well 0 1-9 gpm(0 02-2m <br /> 3/hr) gpm Designs available for more wells, or multiple <br /> I <br /> of 4 8/28/00 2 54 PM <br />