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MINIMUM DISCHARGE RATE=gpm per hole x total holes=total gpm <br /> Diameter of orfice= U 3/16", L 3/16" = U .66 Q 2.5', L .732 @ 3.1' <br /> .gpm/orfice at pressure in feet <br /> # of holes per lat. = U 19, L 17 x# of lats U 3, L 3 =total holes U 57, L <br /> 51 x orfice U .66,L .732 x <br /> Gpm/orfice= U 37.62, L 37,33 gallons all orfices Both cells 74.95 gal. <br /> DISTRIBUTION CELL AREA <br /> Must be <12 sq. ft. per orfice MAX. (sp. ft. of bed divided by# of offices= <br /> 7.04 <br /> Laterals from side of bed (.5 lat. Spacing <2' MAX) U 1.5', L 1.5' <br /> Laterals from end of bed (6" to 2' MAX) U 1', L 1' <br /> DOSE SYSTEM >5 X dist. Pipe void volume (max. 20% of daily wwf) <br /> LATERAL DIAMETER U 1.5" L 1.5" Lateral length U 36', L 36' <br /> # of lats U 3, L 3 x length 38' =total lat. Length 6x38'=228' x gal./ft <br /> .092 =total gal 20.98 <br /> Total gal 20.98 x 5 = 104.88 (5 times void volume) <br /> FORCEMAIN: diam 2" gal./ft .163 length 30' <br /> Flowback= length 30' x gal./ft .163 =gallons 4.89 <br /> MINIMUM DOSE -= 5 x void volume 104.88 + flow back 4.89 =Min. <br /> dose 109.77 gal. <br /> MAXIMUM DOSE= .2 X daily wwf+ flow back= 154.89 gal. <br /> PROPOSED DOSE = 154 gal. <br /> FRICTION LOSE= force main length 30' x factor 10.61 = 3.18' <br /> TOTAL DYNAMIC HEAD=vertical lift 7.73' + 3.25 + friction lose 3.18' <br /> = 14.16' TDH (add .5 for pressure filter) <br />