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BED & BACKFILL / PRE-INSTALLATION TESTING <br /> 2.4.2. Lift deadman using a minimum of two equally 3.3.5. Use only approved pea gravel or crushed <br /> spaced anchor points(see Figure 2-4). stone(see Figure 3-1): <br /> Figure 2-4 Figure 3-1 <br /> } PEA GRAVEL CRUSNEDSTONE <br /> max.60 <br /> Anchor Point Lifting Chain or Sling <br /> (:1]3/ " 12.m) (122' <br /> m_)D <br /> s ' r ' Maximum Size I Maximum Size <br /> 2.4.3. The deadmen type,lengths,and the number 1rr <br /> of anchor points are dependent upon the tank <br /> diameter,model and capacity.See customer 3/4r <br /> specific drawing for deadman placement and <br /> anchoring location details. 1/2r <br /> 2.5. Lifting Tank Sumps or Risers 1/4r <br /> 2.5.1. Visually inspect the sump components for <br /> shipping damage.If damage is found,contact <br /> CSI Field Services. Pea Gravel: Crushed Stone or Gravel: <br /> Clean naturally-rounded Washed,with angular <br /> 2.5.2. Wear gloves. aggregate with particle particle sizes no larger <br /> 2.5.3. Do not roll,drop or bounce. sizes no larger than 3k" than rh"with no more <br /> 2.5.4. Set on smooth surface. with no more than 5% than 5%passing a#8 sieve. <br /> passing a#8 sieve. Dry density must be a <br /> 2.5.5. The sump must be secured to prevent damage Dry bulk density,per ASTM C29, minimum of 95 pounds <br /> from high winds.Proper precautions should must be a minimum of per cubic foot. <br /> be taken to protect adhesive channels. 95 pounds per cubic foot. <br /> 2.5.6. Refer to Supplemental Documents(Section 21) <br /> for additional information on tank sumps. 3.4. To check your backfill size and receive a <br /> 3. BED&BACKFILL job specific email acknowledgment,go to <br /> 3.1. The use of approved backfill material is critical to www•containmentsolutions.com,in the search <br /> long term tank performance. box, use term "backfill". <br /> 3.2. Do not mix approved backfill with sand or nativePRE-INSTALLATION <br /> soil. <br /> 3.3. Do not backfill tank with sand or native soil. <br /> 3.3.1. Replace all excavated native soil with Do not pressurize 4,6,8'and 1 O'diametertanks over <br /> approved backfill of proper size and gradation. 5 psig(35 kPa).Do not pressurize 12'diametertanks <br /> Use backfill which meets ASTM C-33 for quality over 3 psig (21 kPa).Tank damage or physical injury <br /> and soundness. may result. <br /> 3.3.2. Require your backfill supplier to certify,with <br /> a sieve analysis,that the backfill meets this 4.1. The following instructions apply to all air tests <br /> specification. described in Section 5-Testing Tanks. <br /> 3.3.3. Sieve analysis must be attached to the Tank 4.2. Visual Air/Soap Test <br /> Installation Checklist. 4.2.1. To be performed on all tanks after unloading <br /> 3.3.4. Keep backfill dry and free of ice in freezing from the truck. <br /> conditions. 4.2.1.1. Single-Wall and Dry Annular 5paceTanks <br /> air/soap tests must be performed at the <br /> job site prior to installation to verify the <br /> absence of damage(Sections 5.1 to 5.6). <br /> 4.2.1.2. Liquid Filled Annular Space Tanks-air/ <br /> soap tests on accessories and fittings <br /> can be performed after the tank is in the <br /> excavation before or after backfilling <br /> (Sections 5.6 to 5.7). <br /> 6 <br />