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CONTACT FOR MORE INFORMATION! tern 5555 Skylane Blvd., S. A / Santa Rosa, CA 95403 lass Ph: (800) 688-3375 /Fx:(800) 700-1188 www.westernfg.com Co -Flex piping installed under reinforced concrete surfaces of a minimum of 4" (100mm) thickness require a minimum cover of 6" (150 mm) of the recommended backfill material. Asphalt, 2" (50mm) minimum thickness, requires 6" (150mm) minimum cover of the recommended backfill material. Unpaved surfaces require a minimum of 14" (350mm) cover of recommended backfill material. After pressure testing is complete, care must be taken to insure even distribution and packing of the backfill material around the piping during the back fill process. Hand shovel material around and over piping to insure correct spacing is maintained. Backfill slowly. Additional care should be taken when initially filling the piping system to insure that all air is removed from the product piping prior to starting any pumps to prevent damage. Be certain that the operating pressure of the pumping system does not exceed the maximum operating pressure of the Co -Flex piping of 75 psi. Periodic testing of both the primary and secondary sections of the Co -Flex system may be performed at any time after installation. Please see installation instructions for DMA, dispenser mounting assemblies, and Western Fiberglass, Inc. tank sumps for details on piping penetrations. Page 7 of 38 V p V r 9 p 7 7 P O• O O O P t O O O• O 9• ONE DIAMET R>_7 _; o_o ;_; 9_ - ;_o o_; P v v v v P V v o 0 o v o r� r i c r v v y O O_ P O_ P O O _ 4 p n p 9 p D 4 p l p 7 p 4 p O P P O O P P P � O O O O P O O P O a P Q P q C P q P -p C Q P .� O _ P O_ O O_ 0 O_ S P h C r OC - O P O P % C tl r P O P P O O P P P P O P O O P O r 7 r I p 9r R 7 7 7 9 1 P q P 9 r y r ry _ P P_ P P_ O P_ P_ O P_ P O- P P P_ P P_ P O_ P O_ P O_ P S 7 r n r n P 'l C 7 r 7 P 7 P 7 r 4 r l C 7 r I C n P O O P P P P P P O O O O P O P P P O O O O O P O O P h p t p O p q p •i p O p 7 p •l p +t p R p 9 p 4 p •1 p P O O O O P P P P O O O O O P O O P O O O P O P 9 O Co -Flex piping installed under reinforced concrete surfaces of a minimum of 4" (100mm) thickness require a minimum cover of 6" (150 mm) of the recommended backfill material. Asphalt, 2" (50mm) minimum thickness, requires 6" (150mm) minimum cover of the recommended backfill material. Unpaved surfaces require a minimum of 14" (350mm) cover of recommended backfill material. After pressure testing is complete, care must be taken to insure even distribution and packing of the backfill material around the piping during the back fill process. Hand shovel material around and over piping to insure correct spacing is maintained. Backfill slowly. Additional care should be taken when initially filling the piping system to insure that all air is removed from the product piping prior to starting any pumps to prevent damage. Be certain that the operating pressure of the pumping system does not exceed the maximum operating pressure of the Co -Flex piping of 75 psi. Periodic testing of both the primary and secondary sections of the Co -Flex system may be performed at any time after installation. Please see installation instructions for DMA, dispenser mounting assemblies, and Western Fiberglass, Inc. tank sumps for details on piping penetrations. Page 7 of 38