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(Best to make basil area equal between beds) <br /> MINIMUM DISCHARGE= gpm per hole x total holes=total gpm. <br /> Center Manifold: Lat length/orifice spacing+ .5 <br /> End Manifold: Lat length/orfice spacing+ 1 <br /> Diameter of orfice=(1/8, 5/32, 3/16,or 1/4) 3/16" gpm/orfice at pressuere in feet .66 <br /> @ 2.5' #of holes per lat. 13 = 13 x#of lats 4 (total holes) = 52 x gallons/orfice <br /> .66 =34.32 gallons/all orfices. <br /> Distribution Cell Area < 12 sq. ft. per orfice MAXIMUM (sq. ft. divided by#of orfices) <br /> = 11.54 <br /> Distance between laterals (<4') <br /> LATERALS FROM SIDE OF BED (.5 LAT. SPACING <2' MAX) 2' <br /> LATERALS FROM END OF BED (6"TO 2' MAX) 1.04' <br /> DOSE SYSTEM: > 5 x dist. pipe void volume (maximum 20% of daily wastewater <br /> flow) <br /> LATERAL DIAMETER 1.5" LATERAL LENGTH 36.46' <br /> lat. #4 x length 36.46' =total lat. Length 145.84' x gal./ft. .092 = 13.42 total gal. <br /> total gal. 13.42 x 5 gal.= 67.09 (5 times void volume) <br /> FORCEMAIN: diam. 2" gal. /ft.. flow back= length 100' x <br /> gal./ft. .163 = 16.3 gallons gal. <br /> MINIMUM DOSE= 5 x VOID VOLUME 67.09 +FLOWBACK 16.3 = 83.39 MIN. <br /> DOSE gal. <br /> MAXIMUM DOSE= .2 X DAILY WASTEWATER FLOW+FLOWBACK= 136.3 gal. <br /> PROPOSED DOSE= 105.48 gal. <br /> FRICTION LOSS =LENGTH OF FM 100' x FACTOR 2.58 =2.58' <br />