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1 <br /> (l <br /> f• 'r 4-4111PENCIL <br /> MARKS ,•.,.. .i. _ <br /> ■ t <br /> A./. <br /> 04010.00.&-. <br /> . • .Agempritt. ._ <br /> . . , :.L <br /> • q� •_•y.',,,.. <br /> L s <br /> l7 <br /> / .i 20" �/ ..• I I:• .4r. . ... <br /> .yii <br /> � MANHOLE ;1 <br /> .i i <br /> r <br /> a �:��' � SCUM ..i. -.:1". .‘.:-'7-'' ' 1'Is 9' ' OUTLET <br /> INLET -:7-- t q l, <br /> • <br /> ,. = r'OUTLET LEVEL .,. '*;, �= :1's 1i '• �i <br /> tV � ,_ = _ _ � __ _ --_ -•_ `; tip li•. 1 ' <br /> — — - - — — — ,r II <br /> SPACE -- -�' t1 OUT TANK WHEN <br /> _ SCUM CLEAR J �= CLEAN <br /> _- _.. .__ __ _-- - -= - —T 'A" IS 3" OR LESS OR <br /> --- ---- -- -- --- - -- - ---- "B" IS 12" OR LESS <br /> . _____ —-,-_— — . ..._____ _ <br /> r , : ______.__ — ____ _ ___,_„______ --=_ . . . . <br /> ), <br /> .f: si-:...-•• . • . . • • I BLACK COLOR <br /> �� SLUDGE : - ; -f • DISTINGUISHES SLUDGE <br /> ;•: • LAYER FROM LIQUID <br /> �� �� • I' <br /> w <br /> - 1v/ • <br /> MEASURE SCUM AND SLUDGE ACCUMULATIONS <br /> IN THE SEPTIC TANK . <br />