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Lf" <br />Why Double -Wall Tanks? <br />Several factors lead companies and consumers to choose double-wall <br />underground storage tanks, whether or not they are required by law <br />to do so: <br />I. Xerxes fiberglass double-wall tanks are rustproof and maintenance - <br />free, and are formulated to be compatible with petroleum -fuel <br />products, including alcohols and alcohol -gasoline mixtures. <br />2. Two walls of protection allow for maximum security in the <br />unlikely event of a leak in the primary wall. <br />3. Xerxes tanks offer a full 360 -degree secondary containment. <br />Unlike other types of double-wall or jacketed tanks, the secondary <br />containment can be pressure tested at the installation site both <br />prior to and after installation. . <br />4. Various types of monitoring devices can be installed in the <br />interstitial space inherent in double-wall tanks. With Xerxes' <br />TRUCHEK hydrostatic monitoring system, owners/users are able <br />to conduct a tank -tightness test that meets EPA criteria and has <br />Underv, r iters Labcr_ terfes' {UL} third -parry verification. <br />Xerxes engineer; �.v ere the r-rSt to utiiize integrally constructed ribs <br />in fiberglass tanks for added tank strength. We were also the first <br />to manufacture a UL -listed fiberglass double -wail tank and provide a <br />factory -brine -filled tank system. Through innovative technologies, as <br />well as extensive research and development, Xerxes remains at the <br />forefront of the underground storage tank industry. <br />That is the real difference. <br />