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All <br /> A8. TANK INSTALLATION PROCEDURE • Place the first 12"lift evenly around tank(see figure 18). <br /> Before You Begin: r • Use a long handled probe to push backfill completely: <br /> It is important you review all instructions to make sure ❑ Beneath tank bottom. <br /> that the proper procedures and materials have been <br /> corr plied with. This includes: ❑ Between the 5 o'clock and 7 o'clock position the <br /> Bed and Backfill entire length of the tank and around the end caps. <br /> • Pre-Installation Testing ❑ Between all ribs. <br /> • Hole Size/Burial Depth ❑ At 3 to 5 points under end caps. <br /> • Anchoring <br /> FIGURE 18 <br /> T CNK INSTALLATION-WARNINGS AND CAUTIONS <br /> Long Handled Probe <br /> �li 11 III I�I fll <br /> Do not enter the tank excavation unless necessaryl i First 12" Lift <br /> Follow OSHA guidelines for tank excavations. of Backfill <br /> Collapsing excavation walls can cause Injury or deathl :k•,�y 7 <br /> r: :12" Bed :'• is;i <br /> DO <br /> ♦ Backfill the tank as soon as possible to tank top to mini- <br /> mize chance of tank buoyancy. ♦ Place another 12" of backfill to insure proper support. <br /> ♦ Ballast tank with water or product after backfill is even • Repeat the probing of backfill to insure proper sup- <br /> vyith tank top. port (see figure 19). <br /> DO NOT FIGURE 19 <br /> • Place water or product in tank until backfill is even with Long Handled Probe <br /> tank top! <br /> Second 12" Lift <br /> INS ALLATION PROCEDURE - DRY HOLE of Backfill <br /> (WI H OSHA SLOPED EXCAVATION WALLS) First 12" <br /> Lift of <br /> Be Backfill <br /> DO 7 5 <br /> ♦ Provide a minimum of 12"bedding under entire length of ' Z. <br /> tank using approved backfill material(see Section A2). `<12" I3ed; :'' <br /> ♦ let tanks directly on backfill bed. <br /> DO NOT It is critical to tank performance <br /> that this area offer full support <br /> • Place tanks directly on concrete pad, timbers, cradles under tank and end caps <br /> or beams. <br /> • After completion of second lift,backfill can be brought to <br /> Backfilling (All tank models) - Proper backfilling is im- top of tank without additional handwork(compaction may <br /> portant to provide necessary support for the tank. be required for slab support). <br /> It icritical to: NOTE:To minimize the chance of tank buoyancy,back- <br /> ♦ se approved backfill material without voids(see figure 17). fill the tank as soon as possible to tank top and tank <br /> FIGURE 17 ballast(fill tank)with water or product. <br /> Right Wrong CAUTION <br /> 1� Do not place water or product in tank until backfill <br /> Is even with tank top or tank damage can occur. <br /> CONTINUED ON PAGE 14 <br /> 13 <br />