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7 . PRESSURE TESTING THE STEEL PRIMARY TANK: <br /> * USE TWO CALIBRATED OR NEE► 0-10 PSI PRESSURE GAGES WHEN <br /> PRESSURIZING THE PRIMARY STEEL TANK. <br /> * THE MAXIMUM TEST PRESSURE FOR THE PRIMARY TANK IS 5 PSIG . <br /> * GAUGES SHOULD BE CHECKED FOR OPERATION AND ACCURACY BEFORE USE . <br /> ACCIDENTAL USE OF VACUUM GA'JGES ON PRESSURE TESTS HAS CAUSED <br /> SEROUS ACCIDENTS . <br /> * WARNING: AIR TESTING '4ITH OVER 5 PSIG IS HAZARDOUS AND MAY <br /> DAMAGE THE TANK. DO NOT AIR TEST A TANK WHICH HAS PREVIOUSLY <br /> CONTAINED FLAMMABLE OR COMBLJSTIBLE LIQUIDS. <br /> S . VACUUM TESTING THE F.R. P. SECONDARY CONTAINMENT: <br /> * CAUTION: DO NOT PRESSURIZE THE F.R.P . SECONDARY CONTAINMENT. <br /> * SUPERTANKST! ARE SHIPPED WITH P_ REMOVABLE VACUUM GAGE AND A <br /> MINIMUM OF 10" MERCURY VACUUM IN THE ANNULAR SPACE . FOR THE <br /> PURPOSE OF F .R . P . SECONDARY CONTAINMENT DAMAGE DETECTION DURING <br /> INSTALLATION AND BACKFILL . IT IS RECOMMENDED THAT THE ANNULAR <br /> SPACE REMAIN UNDER VACUUM FOR AS LONG AS POSSIBLE. <br /> * DO NOT PERFORM ANY TYPE OF ANNULAR SPACE TESTING WITHOUT FIRST <br /> CONSULTING WITH A TRUSCO TANK REPRESENTATIVE . <br /> 9 . ANCHORING: <br /> * FOR CONDITIONS REQUIRING HOLD DOWN STRAPS , IT IS THE <br /> RESPONSIBILITY OF THE TANK OWNER OR HIS TECHNICAL <br /> REPRESENTATIVE TO DETERMINE THE QUANTITY OF HOLD DOWN STRAPS <br /> AND THE METHOD OF ANCHORING . <br /> * IF THE TANK IS TO BE PLACED ON A CONCRETE SLAB , P_ MINIMUM OF <br /> 12" OF APPROVED BEDDING__ MATERIAL MUST BE INSTALLED BETWEEN THE <br /> SLAB AND THE TANK BOTTOM. <br /> * THE TANK INSTALLER MUST INSTALL EXPANSION JOINT MATERIAL UNDER_ <br /> EACH HOLD DOWN STRAP AND ALL STRAPS MUST BE EVENLY AND PROPERLY <br /> TENSIONED . <br /> 10A. FIELD INSTALLATION OF APPURTENANCES: <br /> * IT IS THE RESPONSIBILITY OF THE TANK INSTALLER TO COMPLETE THE <br /> REQUIRED FIELD INSTALLATION OF ALL APPURTENANCES . <br /> * SURFACE PREPARATION : ALL SURFACE AREAS TO BE FIELD <br /> FIBERGLASSED MUST BE THOROUGHLY SANDED, CLEANED, AND DRY . <br /> * RESIN AND CATALYST MIXING : THE RATIO OF RESIN TO CATALYST IS <br /> 1 - PINT RESIN TO 1/2 OZ . - CATALYST. <br /> * AFTER MIXING THE COMPONENTS , THE FIELD FIBERGLASSING TASK MUST <br /> BE ACCOMPLISHED WITHIN 20 MINUTES . <br /> j * IT IS IMPERATIVE THAT ALL AIF. BUBBLES BE WORKED OUT OF RESIN <br /> SATURATED FIBERGLASS MAT . <br /> 5 rev . 7/13/90 <br />