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INSTALLATION PROCEDURES FOR UNDERGROUND STORAGE TANKS <br /> GLASTEEL m 6ED AND BACKFILL : <br /> ALL EXCAVATED NATIVE SOIL MUST BE REPLACED WITH APPROVED BACKFILL. DO NOT BACKFILL IN LAYERS 'USING <br /> DIFFERENT MATERIALS. <br /> APPROVED BACKFILL MATERIALS ARE; <br /> 1, CLEAN WASHED SAND <br /> 2. GRAVEL <br /> A CLEAN, NATURALLY ROUNDED AGGREGATE WITH A MIX OF PARTICLE SIZES NOT LESS THAN 1/8" NOR <br /> MORE THAN 3/4" IS REQUIRED. THIS MATERIAL IS COMMONLY CALLED PEA GRAVEL. <br /> 3. STONED OR GRAVEL CRUSHINGS <br /> WASHED STONE OR GRAVEL CRUSHINGS WITH ANGULAR PARTICLE SIZE NOT LESS THAN 1/8" NOR MORE <br /> THAN 1/2" IS REQUIRED. <br /> LEAK TEST PROCEDURES FOR DOUBLE WALL TANK AT JOBSITE WHILE TANK IS EMPTY• <br /> 1. IF OUTER TANK MAINTAINS AT LEAST 3.3* 1n.HG OF VACULM FOR ONE HOUR BOTH THE INNER TANK AND <br /> OUTER TANK MAY BE CONSIDERED PROPERTY TESTED. <br /> 2 . Interstitial space to be vacuum tested only . <br /> TANK HANDLING: <br /> UNDERGROUND TANK(S) ARE SUPPLIED WITH EITHER ONE OR TWO INSTALLED LIFTING LUGS, DEPENDENT ON TANK SIZE. <br /> REFER TO SPECIFIC TANK DRAWING TO DETERMINE THE EMPTY LIFTING WEIGHT OF THE TANK. <br /> SEE "FINISHING INSTRUCTIONS", ITEM KkiSER 7; FOR APPLICATION OF LIFTING LUG COVERS TO "GLASTEEL" TANKS PRIOR <br /> TO BACKFILLING OR COVERINC; THE TANK, <br /> 60 NOT DROP OR ROLL TANK(S) FROM TRUCK INTO EXCAVATED OPENING. <br /> LIFTING PROCEDURES: <br /> s0 hnXI^U^ <br /> 00 A]NtAUl1 <br /> r------- . ---------------� <br /> THESE INSTALLATION INSTRUCTIONS TAKE PRECEDENCE OVER ACT 100 INSTRUCTIONS•IN ANY AREA OF { <br /> DIFFERENM, <br /> Page 2 of 2 <br />