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CAUTION: Integrity testing with air, gas or water can be dan- gerous and it is very important that the proper testing equip- ment be used and that the testing procedures be adhered to. OPW-FCS assumes no responsibility or liability for the conse- quences of any testing practices. Only qualified and experi- enced personnel should conduct the air pressure testing. Never disconnect couplings, caps, or plugs unless the air pressure has been released. NOTICE: All testing requirements must be in accordance with all applicable codes. CAUTION: Always make sure the underground storage tank and dispensers are isolated from the piping system when conducting pressure tests. NOTICE: Significant temperature changes can result in a pres- sure reading differential. 10.1 Primary Pressure Testing Pre Backfill Pressure Testing: Before backfilling of the pipe, an air pressure hold & soap test is required. Pressurize the primary pipe to sixty pounds per square inch (60 PSI). Gradually apply air pressure into the flexible piping line and maintain this pressure for a minimum of 1 hour, or in accord- ance with the authority having jurisdiction (AHJ), prior to backfilling. Post Backfill Air Pressure Testing: After backfilling, if the pressure on the primary was released, an additional air pres- sure hold test is required. Pressurize the primary pipe to sixty pounds per square inch (60 PSI). Gradually apply air pres- sure into the flexible piping line and maintain this pressure for a minimum of 1 hour, or in accordance with the authority having jurisdiction (AHJ), making sure that there is no drop in pressure. 10.2 Secondary Pressure Testing a Pre Backfill Air Pressure Testing: After the primary line pressure stabilizes, gradually apply air pressure into the inter- stitial space of the flexible piping line. Do not exceed ten pounds per square inch (10psi) or 69kPa, making sure there is no drop in pressure for a minimum of one hour, or in ac- cordance with the authority having jurisdiction (AHJ). Post Backfill Air Pressure Testing: After backfilling an air pressure hold test is required. After the primary has held pressure steadily for at least 1 hour, gradually apply air pres- sure to the secondary test tube, not to exceed 10 PSI. Main- tain this pressure for a minimum of 1 hour, or in accordance with the authority having jurisdiction (AHJ), making sure that there is no drop or increase in pressure. NOTICE: During pressurizing, check the reading on the inter- stitial test gauge that should be securely connected to the Interstitial Test Tube. Any increase in pressure will indicate a leak in the primary pipe or Fittings. NOTICE: All testing requirements must be in accordance with all applicable codes. CAUTION: Always make sure the underground storage tank and dispensers are isolated from the piping system when conducting pipe pressure tests. 11.0 Routine Maintenance and Visual Inspections OPW-FCS recommends routine (at least once a month) visual inspections inside all containment sumps. Fuel leaks collected in containment sumps must be reported immediately and investigated by the site owner. If leakage or damage to the piping system is suspected, OPW-FCS must be notified immediately. All sumps must be kept free of fuel, water and debris. When chang- ing fuel filters at the dispenser, make sure any spilled product is cleaned out of the bottom of the dispenser sump to prevent a pos- sible fire hazard. CAUTION: Ignoring or disabling leak detection alarms can lead to further damage and possible failure of the system. CAUTION: Failure to remove fuel and liquids from containment sumps may compromise the performance and integrity of the sump and its associated fittings and seals over prolonged periods of time. 12.0 Warranty Registration Warranty registration must be completed and mailed to OPW-FCS for warranty activation. A copy of the warranty registration should be given to the site owner for their records. 13.0 OPW-FCS Contact OPW-FCS can be contacted if there are any questions concerning the installation, maintenance or repair of FlexWorks piping. Addi- tional publications are also available on OPW-FCS's website www.opwglobal.com or upon request. MAR 31 2016 —'61 3250 Smithfield, Ud, 7 Business West Smithfield, N..C., 27577-0330 ® Customer Service: 1 -(800) 422-2525 FUELING CONTAINMENT SYSTEMS Technical Service and Questions: 1-(877) OPW-TECH www.opwglobal.com Notice: OPW-FCS products must be used in complier. with applicable federal, slate, provinaal and local laws and regulations. Product selection should be based on physkal specifications and limitations and compatibility with the envim- ment and material to be handed. OPW-FCS makes no warranty of fib -a for a particular use. M illustrations and specthcations in this literature are based on the latest production information availabi at the fide of publication. Prices, materials and specifications are subject to change at any time, and models may be discontinued at any lime, in either rase, without notice or obligation. For complete OPW-FCS warranty information, visit our web site at wwwopwglobal.com.