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L <br /> PUMP SELECTION PROCEDURE <br /> AN boxed rectangles must be entered,the red WN be calculated, <br /> 1. Determine pump capacity: <br /> A. Gravity Distribution <br /> 1.Minimum required discharge is 10 gpm <br /> Z Maximum suggested discharge.is 45 gpm, <br /> For other establishments at least I OOA greater than the water <br /> supply rate,but no faster than the rate at which effluent will flow <br /> out of the distribution device. <br /> B. Pressure Distribution-see pressure design worksheet to.*--t <br /> & <br /> Selected Pump Capacity: 66.6 gpm <br /> WIM Zk atovaftni <br /> 2. Determine head requirements: ocpa <br /> A. Elevation difference between pump and point of disc e. ............. <br /> feet <br /> B. Special head requiremenrl(See F/qure 8"Heel((equtrements) <br /> feet i, ial Head Requirements <br /> Gravity Distribution Oft <br /> C. Friction loss Pressure Distribution 5ft <br /> 1. Select pipe diameter Din <br /> 2. Enter Figure E-9 with gpm(1A or B)and pipe diameter(Cl) <br /> Read friction loss in feet per 100 feetACirr.kFogure-E-9 -01re <br /> ----j1t 1i <br /> Friction loss= F 6.48 it/100 ft Of pipe <br /> 3.Determine total pipe length from pump discharge to soil system discharge point *YWRft IA,- 7 -31 <br /> 11— <br /> Estimate by adding 25 percent to pipe length for filling loss. F <— <br /> Equivalent pipe length times 1.25=total pipe length 20 2.47 0,71 0,11 <br /> 75 it x 1.25= 93.75 feet < -NIZ, <br /> W i5,241 1=11 <br /> 4.Calculate total friction loss by multiplying friction loss(02) <br /> by the equivalent pipe length(C3)and divide by 100. <br /> FL= 6.48 ft/100ft X 93.75 - ft / tOO= 6.1 feel 45 1 W 26 3, 0.46 <br /> D. Total head requimment is the sum of elevation difference(A),special <br /> head requirements(B),and total*kfion loss(N). F; <br /> 05, 01r1% <br /> 13 it + 5 it + 61, ft <br /> .44 1 IN <br /> Total Head: 24.1 feet <br /> 3. Pump Selection <br /> 1.A pump must be selected to deliver-at least 661 gpm(1A or B) <br /> with at least 24.1 feet of total head <br /> I hereby certify that I have completed this work in accordance with 611 applicable ordinances,rules and laws. <br /> AX2 (signature) picense#) 7�3-41 5(d(date) <br />