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1 <br /> SOLUTIONS FOR YOUR INDUSTRY...YESTERDAY, <br /> TODAY,AND TOMORROW / <br /> f ,e <br /> The Hydroguard®System combines the proven technology <br /> of double-wall fiberglass tanks with the advanced <br /> protection of double-wall tank sumps in a hydrostatically <br /> monitored environment, creating the industry's most t <br /> dependable fuel storage solution. With unmatched leak <br /> detection capabilities and a 30-year warranty,Hydroguard® �: <br /> provides the security your investment demands. <br /> Hydrostatic Monitoring detects leaks in either the <br /> primary or secondary tank walls (or sump walls) in all w <br /> installed conditions. First the cavity between the innert <br /> and outer walls,known as the annular space,is filled with aY ` <br /> monitoring fluid. Hydrostatic pressure is then applied to <br /> the annular space enabling monitoring of both the primary <br /> containment and the secondary containment areas. An •, <br /> electronic sensor alarm is triggered if the monitoring fluid ' x <br /> I <br /> level changes.This means that 100%of the storage area is <br /> monitored at all times. <br /> g <br /> NORMALHYDROSTATIC MONITORING detects leaks in either the primary or secondary tank walls in all installed conditions. <br /> • • <br /> The reservoir liquid level will be stable if both the inner and outer Monitor fluid drains into the primary tank causing the <br /> tank are tight.The reservoir sensor will activate an alarm if the reservoir to drain.The petroleum product remains safely <br /> reservoir drains Or overfills. <br /> contained in the primary tank. <br /> Concrete Traffic Pad <br /> Reservoir Liquid Reservoir Drains <br /> Level Sensor Inner Wall Breach <br /> Stable Reservoir <br /> Liquid Level <br /> Stored Product <br /> 1 INTRODUCTION <br />