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1.3.7.7.19.Measure the distance from theta nk top(inside) 2' HANDLING AND to the top of the standpipe.Subtract the distance from the nail to the base of the dipstick and record this measurement. STORING TANKS 1.3.7.7.20.Subtract the second measurement(inside tank 2.I.GENERAL top to top of standpipe)from the first measurement(tank bottom to top of standpipe)to calculate the deflection. 2.1.1.Take care not to drop or damage the tank during loading,unload- 1.3.7.7.21.Record the deflection at the appropriate ing,handling and storage at the jobsite. place(as Measurement#1,#2,#3 or#4)onthe Tank 2.1.2.Move tanks by lifting and setting only.Do not move tanks Installation Checklist. by rolling or dragging. 2.1.3.Always lifttanks by using the lifting lugs provided with CALCULATION AND COMPARISON the tank.Distribute the lifting load evenly between the lifting lugs.Use spreader bars and equal length slings as required. 1.3.7.7.22.To calculatethe deflection atanytime during NOTE:Largertanksmaybeprovidedwithguidelugsfor installation,take a diameter measurement and subtract it from Measurement#1. attachmentof guide ropes during lifting and positioning operations.Do not use guide lugs for lifting. 1.3.7.7.23.Compare this calculated deflection to the applicable NOTICE allowable deflection shown in Table 1-6. Never roll,drag or drop the tank.This could result in damage to the tank. Tank Diameter Allowable Deflection 2.2•UNLOADING, HOISTING AND GUIDING TANKS 4-foot 112"[1.3 cm] 2.2.1.Complete the following steps before unloading or relocating the --- tank on the jobsite(and before preinstallation testing atthejobsite): 6-foot 3/n^[19CM] • Visually inspectthe entire exteriorsurface of the tank to make sure 8-foote"[2.9 cm] that no shipping or handling damage has occurred.Look particularly _ forvisible damage,cracks or deep scrapes. 10-foot 1112"[3.8 cm] • Sign the shipping papers accepting the tankas delivered. Any damage observed must be noted in these papers. 12-foot 13/4"[4.5cm] • Be sure thatall equipmentused to liftthetankis rated to handlethe load. See Appendices 111,132 and B3 in this Installation Manual forweights. 1.3.7.7.24.Deflection above the allowable limit indicates the tank is • Select a smooth,solid,level area on which to place the tank,and clear not properly installed. that area of all large rocks,trash and debris. 1.3.7.8.ONSITEPRESSURE • Make sure all tools and other items that may damage the tank during TESTING REQUIREMENTS unloading are removed from the trailer bed. 2.2.2.Make sure the tank is secured in such a way that it does not roll 1.3.7.8.I.Atvarious stages ofthe installation process,theremay off thetruckwhen unloading the tank from the truck. be onsite testing requirements. 1.3.7.8.2.To pressure test tanks,you need to construct a test A WARNING man ifold.See Figure 4-1. Do not release straps securing the tank to the truck until lifting • Thfold.S eFisupplygaugemusthaveamaximumfull-scalereading equipment(such asacrane)issecured tothe tank's lifting of 15 psig[e-s kPa]. lug(s)and until anyone in a position to be injured bythe tank's • The pressure-relief device must be rated to a maximum movement is in a safe location.Failureto do so could result of 6 psig[40 kPa],or psig[28 kPa]fora 12-foot-diameter in death,serious injury or property damage. tank,to reduce the risk of overpressurizing the tank. A WARNING NOTE:For multicompartment tanks,you need a test ma nifold Always secure the tank before moving,rotating or lifting for each compartment. it.This is commonly done by connecting a crane or backhoe to the lifting lugs.Failure to follow this warning could result in death or serious injury. A WARNING While moving or lifting the tank,do not position any part of your body underneath the tank.Failure to follow this warning could result in death or serious injury. 14 I: PLANNING FOR INSTALLATION /2: HANDLING AND STORING TANKS