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Ilk, <br /> 4 BEDROOM HOME = 320 L.F. OF GRAVITY TRENCH <br /> USE I EACH, 1500 GALLON SEPTIC TANK WITH 2 EACH <br /> ORENCO RISERS AND LIDS <br /> NAME EARTH BACKFILL <br /> I2' <br /> WCIVEN FILTER FABRIC, <br /> 42' (EACHIM PAPER OR 2' STRAW OK) <br /> b' SCOIR F4M SIDEWALLS <br /> PRER TO BACKFILLING <br /> ti• , DIA. PERFORATED PIPE <br /> • m 8-V2• VERY CLEAN <br /> AGGREGATE DRAM ROCK. SUBMIT <br /> E4• SAMPLES PRIIR TO PURCHASE <br /> TYPICAL TRENCH DETAIL <br /> NTS <br /> LOT 3 <br />