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I TrNCtL. <br />1AAARKS <br />tv <br />s• ,;c MANHOLE <br />NVLET-- <br />. • scull _. j ;; OUTLET <br />lf-fir!610UTLET LEVEL �� � • <br />- _SCUM CLEAR SPACE -_ _ — CLEAN OUT TANK WHEN <br />IS 30 OR LESS OR <br />8i 'B" IS 12" OR LESS <br />BLACK COLOR <br />�; , ..:.:... SLUDGE FASTINGUISHES SLUDGE <br />- - _ LAYER FROM LIQUID <br />- /1 •. <br />MEASURE ;SCUM AND SLUDGE AC" UMULATIONS <br />IN -HE SEPTIC TANK <br />