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s <br /> INSTALLATION PROCEDURES FOR UNDERGROUND STORAGE TANK'= <br /> GLASTEEL Cft' BED AND BACKF 6 LL <br /> ALL. EXCAVATED NATIVE $O I L MUST BE REPLACED WITH /APPROVED BACKF 1 LL . DO <br /> NOT BACKFILL IN LAYERS USING DIFFERENT MATERIALS . <br /> APPROVED BACKFILL MATERIALS ARE : <br /> 1 . CLEAN WASHED BAND <br /> 2 . GRAVEL <br /> A CLEAN. NATURALLY ROUNDED AGGREGATE WITH A MIX OF PARTICLE SIZES NOT <br /> LESS THAN I /S' NOR MORE THAN 3/4' IB REQUIRED. THIS MATERIAL IS <br /> COMMONLY CALLED PEA GRAVEL . <br /> 3 . STONE OR GRAVEL CRUSH I NO$ <br /> WASHED STONE OR GRAVEL CRV$HINO$ WITH ANGULAR PARTICLE SIZE NOT LESS <br /> THAN 1 /6' NOR MORE THAN 1 /2" 1 $ REOU I RED . <br /> LEAK TEST PROCEDURES FOR DOUBLE WALL TANK AT JOBS I TE WHILE TANK <br /> ANK IS JMPTY : <br /> 1 . IF OUTER TANK MAINTAINS AT LEAST 5 . 3 IN. HO. OF VACUUM FOR ONE HOUR <br /> BOTH THE INNER TANK AND OUTER TANK MAY @E CONSIDERED PRO)WERLY <br /> TESTED. <br /> 2 . INTERSTIAL SPACE TO BE VACUUM TESTED ONLY. <br /> TANK HAN]?L i G : <br /> UNDERGROUND TANK(3) ARE SUPPLIED WITH EITHER ONE OR TWO INSTALLED LIFTING <br /> LUO$ . DEPENDENT ON TANK SIZE . REFER TO SPECIFIC TANK DRAWING TO DETERMINE <br /> THE EMPTY LIFTING WQIOWT OF THE TANK. SEE 'FINISHING INSTRUCTIONS . " ITEM <br /> NUMBER 7 : FOR APPLICATION OF LIFTING LUG COVERS TO LQLA$TEEL TANKS; PRIOR TO <br /> BACK914LJNC OR COVERINQ THE TANK. <br /> D® NOT DROP OR ROLL TANK($ ) FROM' TRUCK INTO EXCAVATED OPENING. <br /> LIFTING PROCEDURES : <br /> 09AAX I ALIA <br /> f------------ ---------------------I <br /> 1 1 <br /> 1 <br /> I I <br /> ! I <br /> I e <br /> TktSE INSTALLATION I NtTPUCT I ONP TAKF V'VFP of— <br /> � n. � . .. ... . .r <br />