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Measure&record"A"and"Z,"and then peform the following calculation: <br /> "A"I 1 L " Drop tube seal surface to the bottom of the tank <br /> -(subtract) <br /> "Z" " Upper drop tube flange to the edge of the upper tube adapter <br /> -(subtract) <br /> 4.5" Reference offset <br /> _(equals) <br /> 5 " Final shutoff volume height <br /> Locate the final shutoff volume <br /> height on the tank chart <br /> Use the tank chart provided by the tank provided by the tank <br /> manufacturer to record and calculate the following: manufacturer,and record the <br /> closest corresponding volume. <br /> gal Final shutoff volume <br /> (divide by) <br /> �b / S gal Actual tank capacity <br /> X(muliply by) <br /> 100 <br /> CL =(equals) If the final shutoff volume <br /> percentage is 95%or less,the <br /> O O Final shutoff volume percentage installation conforms to FFS and <br /> 11� industry recommended practices. <br /> 10152 .gal Actual tank capacity <br /> The final Shutoff Volume Percentage may <br /> -(subtract) be greater than 95%as long as the ullage <br /> 9188 gal Final shutoff volume volume remaining is greater than or <br /> e equal to 250 gallons,so that"...none of <br /> (equals)) the fittings located on the top of the tank <br /> 64 pil Ullage volume remaining are exposed to product due to <br /> overfilling,"according to EPA 40 CFR Part <br /> 280. The installation must also meet all <br /> applicable regulatory requirements,and <br /> must be acceptable to the Authority <br /> Having Jurisdiction(AHJ). <br /> �. 17 <br />