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• <br /> . •, • ' PUMP S LEC'.I'IO1`TRO•CE'D RZE •' • , <br /> . <br /> 1. Determine pump capacity: ' <br /> k. Gravity distribution . • • • <br /> , <br /> 1. Minimum required discharge is 10 4•• . • <br /> 2. ,Maximum suggested'discharge • 45 1-m. :or other. ' <br /> . establishments at least 10%greater the water supply rate, <br /> but no•faster than the rate at which efflujent will flow out of the <br /> distribution device. . • . . . • <br /> . Pressure distribution • . <br /> See pressure distribution work sheet <br /> ro 'A or B Selected'pump.capacity: 1•.?•• gpm <br /> mA-x•; <br /> Determine pump'head•requirements: . . o.o <br /> b, �ia0 <br /> Elevation difference between pump and point of discharge? ' • sorsa#-syst <br /> c/ feet &p e.:.-T.._- cl-a r <br /> Q IP*.G4-f,: : <br /> Special head requirement?(See.Figure at right-Special Head Requirements) , total •►pe <br /> feet • Inlet �� '�,° ��•,,°" • a� IenQt 2A.elevation <br /> Calculate Friction loss • • <br /> pipe. k difference <br /> • <br /> 1. Select pipe diameter 2- in •• '• i, .' '�, ,`d i.02. Enter Figure E-9 with gpm(1A or B)and pipe diameter .(Cl). "W---•--:.4-.' <br /> Read friction loss in feet per 100 feet from Figure E-9'' . ' ' Special Head Requirements <br /> Friction Loss = 3= ft/100ft of pipe •. Gravity Distribution 0 ft <br /> 3. Determine total pipe length frori pump d1 charse to soil treatment ,Pressure Distribution 5 ft <br /> discharge point.Estimate by adding 25.percent to pipe length•for •• <br /> fitting loss. Total pipe length times 1.25:equivalent pipe length -9:Friction Loss in Plastic Pipe - <br /> GS' feetx 1.23 : (•••q feet • • P®r 100 feet <br /> I. Calculate total friction loss by multiplying friction loss(C2)• • nominal <br /> in•ft/100 ftby,the equiyalentpipelength(CS)'and,divide by 100. pipe diameter <br /> .1- ft/,IOOftx, • L . ,+100= a ' ft ifomrcto 1.511 2" 3" <br /> . 9P <br /> Total head required is.die 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 /> ) g ft+ ---.- • ft+, -Z ft s , , 30 5.23 1.55 0.23 <br /> 35 6;96 2.06 0.30 <br /> Total head: 'deet 40 8.91 2.64 0.39 <br /> 'ump selection45 11.07 3.28 0.48 <br /> 50 13.46 3.99 0.58 <br /> 55 4.76 0.70 <br /> .pump must be selected to deliver at least . `-1 S • 'gpm ' • 60 5.60 0.82 <br /> .A or B) with at least_21_,feet of total head(21:5) • ' . • 65 6.48 0.95 <br /> 70 7.44. ' 1.09 <br /> ereby certify that I have completed this work.in accorncc wall applicable ordinances, :rules es and laws. <br /> �- 0 _.-0 (signature) 7c,`I (license#) 4 -I to-d (date) <br />