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BESSTINC. New Product <br />GLOBAL SUBSURFACE <br />TECHNOLOGIES <br />Released September, 2005 <br />BLATYPUS PUMP <br />The Only Bladderless Bladder Pump Species: Bladderensis Obsoletis <br />The Blatypus Pump has no internal bladder, <br />but functions like a bladder pump. The - <br />Blatypus eliminates purging and sampling <br />problems associated with tearing and leaking <br />bladders as well as limited lift capacity issues <br />with traditional bladder pumps. Dimension options <br />With durable fittings, sturdy design, low cost, <br />and customization options, the Blatypus is the <br />next generation in low -flow submersible pump <br />technology. <br />Specifications <br />No Bladder <br />Shallow and Deep Lift Capacity (to 3,000 ft.) <br />200 ml Chamber <br />Multiple Controller Options <br />(BESST, QED, Solinst, Geotech, and others) <br />Variable Tubing Configurations <br />Immediate Lift Pressure Ramp -Up <br />30 Year Warranty <br />Price: $396 per pump <br />Conceptual Operation (,Figure D <br />1. Compressed gas combined with control timer <br />repeatedly moves groundwater up and down <br />between two lines (C). C1 represents a high <br />permeability /fast - recharge condition, and C2 <br />represents a low permeability /slow- recharge <br />condition. <br />2. BESST's proprietary valve system draws fresh <br />water into chamber during the recharge cycle and <br />discharges that water during the purge cycle. <br />23" L x 1.75 W — 200 ml Chamber <br />Custom Configurations (e.g. with Lift Station) <br />11 Variable Tubing Sizes for Higher Purge Rates <br />Gas Tank <br />Controller Gas <br />■ <br />• do <br />C1 C2 <br />III <br />Figure 1 <br />Groundwater <br />Water <br />Sample <br />3. Groundwater incrementally fills sample return line <br />until water reaches the ground surface. <br />4. The water interface repeatedly filling the gas -in <br />line never becomes part of the sample stream. No <br />gas comes into contact with the groundwater <br />sample. <br />BESST Inc., 50 Tiburon Street, Suite 7, San Rafael , California 94901 <br />Toll free. 866.298.8701, Ph.415.453.2501, Fax.415.453.2509 <br />Email: contact @besstinc.com, URL: www.besstinc.com <br />