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| Permatank® is the fastest
growing double wall underground storage tank (UST) design on the
market and the petroleum industry's first choice for tank
replacement and new gas station builds. It's no wonder. Permatank's® double wall construction UL 58 steel primary tank surrounded by a fiberglass-reinforced plastic (FRP) outer tank fives you the best of both worlds. Providing the secondary containment and corrosion resistance of FRP and the strength, flexibility and fuel compatibility of steel. Licensed by the Steel Tank Institute (STI), Clawson Tank Company produces Permatank® using the same leading-edge technology and state-of-the-art manufacturing expertise that have made Clawson a recognized leader in meeting the ever-changing needs of the petroleum industry since 1946. Permatank's® advanced design and proven technology make it efficient and economical. Permatank® is installation friendly. Its flat-head shape reduces excavation space and back fill costs on the average UST by more than 19%. Permatank's® strength resists buckling in unstable, high ground water soils. Clawson's unique PT Sump base is installed and tested at the factory and arrives ready for piping. And our PT Sump riser is the only one of its kind on the market. Built for convenience, the PT Sump riser is easy to open, simple to install and features a water-tight lid design. Effective leak detection is assured by the factory-installed Permatel leak sensor. Separating the tanks with a standoff mesh and a polyester film creates a highly defined and easily monitored interstitial space between the inner and outer walls. Permatank's® factory-applied Precision Test System (PST), the most accurate UST test available, eliminates job site testing labor. Permatank® is available in single, two and three compartment models ranging from 300 gallons to 35,000. |
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