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Kerfoot Technologies Frequently Asked Questions Page 3 of 3 <br /> Why use macroporous Spargepoints® instead of well screens? <br /> The small size of microbubbles, as opposed to the large bubble produced by use of a well screen, yields <br /> ter surface area to volume ratio, therefore greater treatment capacity The small size of the bubble <br /> 'Mus easy movement through the similarly-sized soil pores, with no fracturing of the soil occurring Gas <br /> transfer of oxygen is four times more efficient using macroporous Spargpoints® versus 10 slot well screen <br /> What is the power requirement for the systems? <br /> Wall-mount unit 120vac, 20amp Uses 400 to 600 kwh per month <br /> Pallet or trailer 220vac, 60amp Uses 1600 kwh per month <br /> The above usage reflects the standard system Additional accessories require additional power <br /> Why did K-V Associates, Inc change its name to Kerfoot Technologies, Inc ? <br /> To better represent who we are and what we do Kerfoot Technologies is an Industry Leader in the <br /> development of environmental tools that speed up, simplify, and reduce the cost of groundwater <br /> characterization and remediation around the world <br /> For greater detail or answers to other questions, contact Kerfoot Technologies <br /> About Kerfoot -echnologies I Our Technology I Kerfoot Technology Products I Contact Us I C-SPARGERQ <br /> �, I (1i <br /> r <br /> http //www kva-equipment com/doc php` l2,0,28806,ker28806,,,Index 11/10/2004 <br />