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• Flexiblenderground Piping Systems <br /> August Z, 1997 <br /> CS <br /> SINEW/ <br /> a 1 'S <br /> N 44� 'i 4 v ���o,,a�.`) <br /> Enviroflex® System Specifications (contd.) <br /> The Sumps Shall: <br /> 1. Be fluid resistant to all internal and external UL test fluids, including alcohols. <br /> 2. Must provide access to the primary and secondary piping joints. <br /> 3. Allow visual inspection of all joints. <br /> 4. Have a UL listed frame for mounting of shear valves. <br /> 5. Use sump penetrations resistant to fuel spills and exterior soil variations per UL157 and <br /> sump bulkhead specifications. <br /> 6. Use bulkheads that provide protection to the primary fittings and allow the primary to be <br /> removed without damage to the water-resistant secondary. <br /> Primary & Secondary Piping Terminations: <br /> Terminations above grade shall be completed in compliance with all relevant safety codes and <br /> maintain a water-resistant seal. <br /> TOTAL <br /> CONTAINMENT,' <br /> PSP400.07(2 of 6) i <br />