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PUMP SELBCTTONFR©�CEDIJRE <br /> 1. D eternine pump capacity: <br /> A. Gravity distribution <br /> I. Minimum required discharge is 10 gpm , <br /> 2. Maximum snggested'discharge is 45,wn. For other <br /> establishments at least 109/6 greeter OtjT�the water supply rate, <br /> but nd faster than the rate at which effl ent will flow out of the <br /> distti'bution device. . <br /> B. Pressure distribution <br /> See pressure'distribution work sheet <br /> From•A or B Selected-pump capacity: gpm <br /> 2. D eternilne pump head-requirements: <br /> A. Elevatiort difference between pump and point of discharge? soil treatment systE <br /> 16 feet &p Int f Ischcrc, <br /> apo, ': <br /> B. Special head requirement?(See Figure at rights.Special Head Requirements) total Ipe <br /> eet lengt <br /> inlet 2A.elevation <br /> C. Calculate Friction loss pipe difference <br /> . • ....... .. . <br /> 1. Select pipe diameter 10 in <br /> - .......................... ...... <br /> 2. Enter Figure E-9 with gpm(1A or B)and pipe diameter(C1). <br /> Read friction loss in feet per 200 feet from Figure E-9'* Special -Head Requirements <br /> Friction Loss= a"s ft/•IOOft of pipe Gravity Distribution 0 ft <br /> 3. Determine total pipe length from pump discharge to soil treatment Pressure Distribution 5 ft <br /> discharge point.Estimate by adding 25.perdent to pipe length for <br /> fitting loss. Total pipe length times,1.25=equivalent pipe length E.9:Frlction Loss In Plastic Pipe - <br /> • feet x 1.25 =meet Per 100 feet <br /> 4. Calculate total friction loss by multiplying friction loss(C2) riomin-al <br /> in-ft/100 ft.by.the equiyalent.pipe-length(0)and divide by 100. now roto ',pipe diameter <br /> ftft /100ft x� +100= <br /> 11m <br />�. Total head required is.the sum of elevation difference(A),special' 20 2.47 0.73 - 0.11 <br /> head requirements.($),and total friction loss(C4) 25 3.73 1.11 0.16 <br /> ft+ +_L2 30 5.23 1.55 0.23 <br /> Total head: feet 35 6.96 2.06 0.30 <br /> 40 8.91 `764 0,39 <br /> . Pump selection 45 11.07 3.28 0.48 <br /> 50 13.46 3.99 0.58 <br /> 55 4.76 0.70 <br /> A pump must be selected to deliver at least .3_Qpnl 60 5.60 0.82 <br /> (IA or B) with at least feet of total head(21)) 65 6.48 0.95 <br /> 70 7.44. 1.09 <br /> I hereby certify that h ve mpleted this work in accordance with applicable ordinaiices,:rules and laws. <br /> Ul �a <br /> (/ - Esig�lature) (license#) '2' )Z-O ?i (date) <br />