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IMPORTANT SECONDARY(EXTERNAL)TANK TEST
<br /> Compliance with procedures and instructions in this guide Remove the pressure test connector from the internal
<br /> is necessary for proper installation of Xerxes Century fitting. NEVER PRESSURIZE THE SECONDARY TANK
<br /> Cast Underground Storage Tanks. Failure to comply WITHOUT VENTING IT TO THE PRIMARY TANK.
<br /> will void warranty of tank and may cause tank fail-
<br /> LEAVE THE INTERNAL FITTING UNPLUGGED DUR-
<br /> ure.National,state and local construction codes(NFPA ING TEST.FAILURE TO DO SO AT THIS POINT WILL
<br /> 30 and 31) and environmental regulations should be VOID ALL WARRANTIES. Connect the pressure line
<br /> consulted to ensure full compliance. to the secondary(external) tank fitting. Pressurize to 5
<br /> p.s.i.g. (35 K Pa), then soap entire tank for a period
<br /> OPREPARATION FOR INSTALLATION long enough to determine there are no leaks as indi-
<br /> USE CRANE TO OFF LOAD FROM TRUCK. cated by soap bubbles or a drop in pressure. (Soap
<br /> Although the corrosion resistant Xerxes Century-Cast Test)
<br /> tanks are rugged, care must be taken that they are not After the test replace and tighten both primary(internal)
<br /> dropped or damaged during delivery and handling on and secondary (external) fittings and KEEP BOTH
<br /> the job site. TANKS VENTED.
<br /> Use the lift lug(s) when
<br /> hoisting the tank; do not WARNING
<br /> use cables or chains The tank must be isolated from the piping system when
<br /> around the tank. Two lift- p p 9 y
<br /> ing lugs are provided on J60°-90° pressure testing the piping. TANK PRESSURE IN EX-
<br /> the 15,000 and provided
<br /> on CESS OF 5 p.s.i.g.VOIDS ALL WARRANTIES.
<br /> 00
<br /> gal. tanks. Both must be The tank should always be attended during a pressure
<br /> used. Use guy ropes to test, but personnel should avoid manways,fittings and
<br /> guide the tank when re- the ends of the tank when the tank is under pressure.
<br /> quired. DO NOT ROLL If damage occurs, DO NOT ATTEMPT repairs. Contact
<br /> TANK. Whenever tanks your Xerxes Century-Cast Tank sales representative,
<br /> are stored at the site, it is necessary to chock them in distributor or the Customer Service Representative at
<br /> place to prevent rolling.When relocating the tank on job the Xerxes Plant nearest you.
<br /> site, be sure the new location is free of rock and debris;
<br /> rechock after moving the tank.Refer to TABLE I for weight
<br /> of tanks as a guide for capacity of lifting equipment O BACKFILL AND BEDDING MATERIAL
<br /> required. Xerxes Century-Cast Tanks must be installed using ei-
<br /> TABLE I ther gravel or stone/gravel crushings which meet the
<br /> TANK DATA: following specifications:
<br /> ACTUAL GALLONS(CU.M)AND APPROXIMATE WEIGHT LBS.(KG
<br /> DIAMETER VOLUME WEIGHT Gravel
<br /> FT. M GAL, cU.M LB. KG. Use Clean and well-
<br /> 4.5 1.3 555 2.1 1,100 500 graded pea gravel - 1
<br /> 4.5 1.3 1,010 3.8 1.400 640 (rounded particles) with
<br /> 6.4 1.9 2,376 9.0 3,000 1,360 a minimum diameter of OF-
<br /> 6.4 1.9 2,973 11.3 4,000 1,820 1
<br /> 6.4 1.9 3,869 14.6 5,000 2,270 (3mm)and maximum
<br /> 6.4 1.9 5,661 21.4 6,500 2,950 diameter Of 3/a'(19mm). 3/4„ -
<br /> 8.1 2.5 6,085 23.0 5,000 2,270
<br /> 8.1 2.5 7,950 30.1 6,000 2,720 i
<br /> 8.1 2.5 9,816 37.2 7,000 3,180
<br /> 8.1 2.5 11,681 44.2 8,000 3,630
<br /> 10.5 3.2 10,590 40.1 7,000 3,180 Stone Crushings
<br /> 10.5 3.2 12,090 45.8 8,000 3,630 Stone crushings should
<br /> 10.5 3.2 15.226 57.6 9,500 4,310 be washed and free flow-
<br /> 10.5 3.2 20,022 75.8 11,500 5.220 fill 1/B°
<br /> ing.Angular particle size
<br /> 2O PRE-INSTALLATION TESTING should be between %" o
<br /> _ li fi
<br /> (3mm) and Yz" (13mm) yap_
<br /> All Xerxes Century-Cast Tanks are tested prior to ship- and must meet ASTM
<br /> ment, but it is REQUIRED that all tanks be tested by C-33 paragraph 9.1 ) �-
<br /> the installer prior to installation. After installation and requirements.
<br /> before final backfilling to grade, the tank must be re-
<br /> tested to assure no damage occurred during installation.
<br /> NOTE: No more than 3% of backfill material shall pass through a t
<br /> PRIMARY(INTERNAL)TANK TEST number 8 sieve. It is recommended that your backfill supplier certify
<br /> Prior to installation tighten all fittings except the test/ that the backfill material meets the above specifications.
<br /> monitor fitting. Connect pressure test to internal fitting. NOTE: Fill material must be dry and free of ice and snow. DO NOT
<br /> Pressure test primary (internal) tank to 5 p.s.i.g. (35 K use other backfill materials.If material which meets the specification
<br /> above is not available,contact your local Xerxes Century-Cast Tank
<br /> Pa)for a period long enough to determine there are no sales representative for Information on approved alternate materials
<br /> leaks as indicated by a drop in pressure. and installation instructions.
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