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Why Choose Our Fiberglass Sump? For decades, ZCL I Xerxes has established itself throughout North America as a leading manufacturer of long-life,corrosion- resistant fiberglass vessels and accessories that offer superior protection for the environment.The internal environment of containment sumps is very corrosive.The use of ethanol, ultra-low sulfur diesel(ULSD)and biodiesel fuels, and the corrosion damage caused by these fuels and resulting vapors is increasing. Our fiberglass containment sumps offer customers a corrosion-resistant, long-term option for the storage of liquids in underground installations. A Variety of Sump Options Whether a customer is installing a new underground system or is retrofitting an existing installation, containment sumps are used on nearly all double-wall tanks today.We supply containment collars and sumps as a package to provide secondary containment around tank fittings, piping, pumps and manways. Customers have the option of either dry interstitial monitoring or hydrostatic monitoring. Most double-wall containment sump installations are equipped with hydrostatic monitoring for the same reasons that customers choose it as a monitoring method for double-wall tanks—continuous monitoring of both walls 24/7. Our containment sumps come in a variety of models, sizes and cover/top options. MODELS & MONITORING COVER/TOP SIZE OPTIONS OPTIONS OPTIONS • Round and flat-sided 32-inch watertight cover • 42-inch diameter • Double-wall sump with 38-inch watertight cover • 48-inch diameter hydrostatic monitoring 32-inch friction-fit cover • 36-inch to 72-inch height • Double-wall sump with dry Open top option • Available in shallow and deep monitoring burial heights • Single-wall sump THE ZCL I XERXES ADVANTAGE ZCL I Xerxes double-wall underground storage tanks offer customers several significant design and performance differences that make them a superior choice to both steel tanks and other fiberglass tanks. • Corrosion-Resistant Inside and Out • Maintenance-Free • 100% Premium Resin and Glass • TRUCHEK®Continuous Leak Detection • Flexible Design and Installation Options • 30-Year Limited Warranty FUEL COMPATIBILITY CORROSION RESISTANCE Our UL-listed(1316)and ULC-listed(S615)double-wall ZCL I Xeres tanks and sumps are made of fiberglass,which fiberglass tanks are listed as compatible with 0-100 percent means they are inherently resistant to corrosion. Because they ethanol storage and warranted for the full range of ethanol- are corrosion-resistant inside and out,you'll have the peace blended gasoline. Since the UL listing for steel tanks does not of mind of choosing products that help preserve and protect require ethanol compatibility testing,this is another distinct the environment.You'll also enjoy a lower cost of ownership advantage of fiberglass over steel. than with steel tanks,which corrode over time and require PARABEAM® maintenance. To create a double-wall sump that is structurally strong,ZCL I EXTENSIVE THIRD-PARTY QUALITY TESTING Xeres uses Parabeam®,our patented 3D glass-reinforcement As further evidence of their durability, ZCL I Xerxes double- material,to bond the sump walls.This is the same design wall sumps have passed extensive third-parry testing to verify concept that has made our double-wall tanks the most widely that they withstand interstitial pressure levels that other used underground tanks in North America. By using our sumps cannot.Therefore, customers can be assured that unique woven-glass to create the interstitial space,our sumps our containment sumps are superior to other options in the are built to avoid weaknesses such as structural collapse and marketplace. false monitoring alarms due to flexing walls.