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MODEL LENGTH = ETD + riser -bottom clearance <br />DETERMINING MODEL LENGTH <br />Effective Tank Diameter (ETD) is <br />the combination of any or all of the <br />following: <br />Tank Diameter (to top of 4" bung) <br />+ Manway <br />+ Sump Adapter <br />Riser to be determined by bury depth <br />BURY <br />DEPTH <br />RISER LENGTH <br />MIN. <br />MAX. <br />2' <br />711 <br />711 <br />2.5' <br />7" <br />11' <br />3' <br />7t; <br />171 <br />4, <br />7" <br />29" <br />5' <br />711 <br />41" <br />6' <br />711 <br />53" <br />7, <br />71 <br />65" <br />Note: Above ground tanks have a <br />minimum riser length of 7" and a <br />maximum of 36". <br />GRADE LEVEL <br />i <br />RISER <br />I <br />-- SUMP <br />ADAPTER <br />MODEL�� MANWAY <br />LENGTH <br />EFFECTIVE <br />TANK <br />DIAMETER <br />(ETD( <br />Note: IST2 can be used in 94% of all known installations. The following information indicates certain <br />installations where a ISTI or IST3 is required: <br />USE IST2 IF MODEL LENGTH IS 88.150". <br />Use ISTI if model length is shorter than 88 down to 56" <br />Use IST3 if model length is longer than 150 up to 212". <br />THE INTELLIGENT SUBMERSIBLE TURBINE, <br />NOW THE CLEAR CHOICE IN SUBMERSIBLE PUMPS. <br />R �GT�1 Z <br />FE Petro, Inc. • 4805 Voges Road <br />P.O. Box 139 • McFarland, WI 53558 <br />(608) 838-8786 •1-800-225-9787 <br />Fax: (608) 838-6433 <br />10/95 <br />