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11/17/98 17:02 TITAN UBBER i 444 • N0.041 P010/010 For further information=morning fabric specifications and instal- SUMMARY Laron procedures,consult the filter fabric suppliers installation I. Prepare to tank bed, guides or instructions. 2. Set and keel the tanks. To install fitter fabric,typically fitter fabric manufacturers recom- 3. Measure the tank diameter. mend that the installer line the excavation sides and bottom with 4. Install holddown hardware(if applicable). the fabric.Overlap adjoining panels by at least twelve inches. 5. Place and probe the first two Iffte of backfill material. Place backfill material an the panels around the edge of the hole 6. Add backfill to the top Of the tank to anchor them in place. 7. Measure the tank diameter and repeat the air W. In wet-hole conditions, use backfill material to sink and hold the Ager the air test and measurement of tank deflection are success- fabric in place on the hole bottom. fully completed,It is recommended that the tank be ballasted until piping instalW6on and final backfilling to grade is completed.When 5. DRY eLE INSTALLATION filling the tank male sure that the tank is adequately vented.The GUTION:Xerxes recommends that every site be thoroughly vent crust be large enough to avow the displaced air to escape, evaluated for the potential to trap water or otherwise subject the WM Do not babs!the rave urd of henna/Is cm with me top Of the rano tank to a rise in the local water table.Xerxes recommends that all WARNING:If product is used as ballast,exercise special care m tanks be anchored in installations in which water may enter to handling.Safeguard against sparks,fire or product spills.Improper hole.failure to anchor the tank in a wet hole may damage the tank handling of product can cause a fee or explosion,and death, or surrounding property. severe personal injury or property,damage- Prepare a smooth,level bed, 12"thick,of approved backfill material.flare to tank or tanks onto to bed.Do not set Xerxes rINSTALLATION tanks directly onto a concrete slab or on timbers,cradles or WpRNB�;Do not use air presswe to test tanks that curtain dant directly ode the tale bottom- enable or combustible liquids,or vapors,and do not perform any Leweling:As the tank is being placed,set the tank pitch as shown post installation pressuretest.The fuel and air mbdum may explode on the site plans.Xerxes does not require that a tank be pitched. and Muse death,severe personal injury,or property damage- All pitch is determined by the tank owners specification.It a double CAUTION:Never allow an empty tank to remain in a wet hole,or a wall tank is pitched,the monitor should be at the low and.Use the dry hole goat may became wet unless anchoring and backfilling tops of the ribs to establish longitudinal level.Establish lateral level Ihave been completed.Failure b anchor and backfill may damage by placing the level across the top of a fitting,a manway or a collar. the tank or surrounding property. When the tank Is placed,I&the first diameter reading(Dell don 1011 DOWU reaNhps to be tyerh in stno wo smear to steps dwft in reading';1 on the checklist).See Section 13 for instructions on seatim S. taking deflection readings. Pump the wafer from the We to maimain minimum water level. If the tank is to be anchored,install the andnring hardware at this Add a minimum of 12 Ides of well-placed backfill material to the tone(See Section 7). hole,and level the bed to assue uniform bottom support for the BACKR WNG tank.Position the tank in the hole. Use onlyapproved backfill material(See Section 3).Do not mix Partially ballast tank until 4 sables firmly on the prepared bed. approved Magna)with sand or native soil.Do not use native soil Ballast level in a tank must rear exceed wafer level in hole during as backfill material.All excavated naM soil must be replaced with installation.Use only enough ballast to sink the tank unfit barMll approved material.Place one 12"lift of material event'around the trial is even with the top of the tank tank.From the hole side or the top of an adjacent tank wok the WARNING:t product is used as ballast,exercise special care in material by hand completely beneath foe tank body and domes to hardy g.Safeguard against sparks,fire or product spills.Improper provide full support.Use a nonmetal probe bar king enough to dandling of product can cause a fire or explosion,and death, reach beneath the tank and push the backfill in place.Repeat this severe personal injury or property step with a second 12"lift After the second lift of material has been — placed and probed,the baddit can be brought to the top of the After leveling tanks,the anchoring procedures in Swfiuh 7 must tank without further hand work. be followed. tWTION:Do not strike the tank with the probe bar.The tank may Backfill must be added evenly after anchoring,and remaining be damaged and require repair dry hole backfilling procedures should be followed as stated in Section S. WE Can;depth must roil mrirun depth 9pedfied in section 7 at th e RIGHT WtRONGireWuctims. IIIN& ANEEM Nmte It is ream rded to•e tr*be cam;Iftb ballasted mrd baddil Is even I With the top of the tan III fill I FIGURE 5.1 FIGURE 5-2 When the tank is backfilled to the tank top: •take an intermediate diameter reading as an in-process cetic. g� repeat the 5 PSIG(3 PSIG for 12-foot tanks)air test as outlined in Section 2,soaping all exposed arm of the tank "- and all fittings. FIGURE S-1