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Sep 12 06 10: 53a Josh Swedlund (9521873-3292 p. 10 <br /> Y <br /> 1 �� � <br /> ' PUMP SELECTlON PROCEDURE <br /> AII boxed recfangles must be entersd,the resf wrU be calculeted. <br /> 1. Determine pump capacity: <br /> a GravRy Distribunon <br /> 1.Minimum required dlscharge is 10 gpm <br /> 2,Max[mum suggesled discharge is 45 gpm <br /> For oiher establishments at feast 1096 greater than the water <br /> supply rate,but no faster than the rate at which efliuent will flow <br /> out of the disUibution device, <br /> B. Pressure Dishibut�on-seepressure daslqn waksheef soll lreptment system <br /> &p ini ot d hvige <br /> Selected Pump Capactty: 28.6 gpm 10101�'►'e <br /> lenglh <br /> •uwmw 2A.etevatlon <br /> inlet ' dl[ferenca <br /> 2. Determine head requi�ements: Pp� <br /> A. Elevation d'rfference between pump and point of�ischarge, �;.: . - .- .i <br /> �feet � ........................••• ••._... <br /> �! � <br /> 8, Special head requirement?(See Figur�-Spedal Head Requiremen[s) <br /> �feet S 'al Head Requi�ements <br /> Gravity Disiribution Oft <br /> C. Friclionloss Pressure DisUibution 5ft <br /> t. Select pipe diameter ��in <br /> 2. Enter Figu�e E-9 with gpm(1A or B)and pipe diameter(C1) E4:FicNan loss i�Plc�stic PSpe <br /> Read fiction loss in feet 100 feet from Figure E-9 <br /> Frk�fon Ioss= 1.55 R/100 ft of pipe <br /> F�st 100 feel <br /> nominol <br /> 3.Detemiine total 'pe length firom pump discharge to soil s stem disch �d�� <br /> � y �PaqG tlowrn}e 1. ' 2 3' <br /> Estlmate by adding 25 peroent to pipe length fa fitting loss. <br /> E ulvalent ' length ames 1.25=total pipe I�gth 20 : 2,47 0.73 9.11 <br /> 40 ft x 1.25= 50 feet 2S'::�::�:�-'.;;�:t�:7.3'::;:='.1�1:7_:'.:::O..l b. <br /> 30 5.23 1.55 0.23 <br /> 4.Calculate total fricfion loss by mulUplying hiction loss(C2) <br /> 35 6.96 2.06 0.30 <br /> by the equivalent pipe length(C3)and divide by 100. �,:.�:��::'`:'� :B�Qi`•.-.::�,6_d;^;.,�:0,3V:� <br /> FL= 1.55 fV10(Xt X 50 ft / 100= 0.8 (� 45 11 A7 3.28 0.48 <br /> 50 13.46 3.99 0.58 <br /> D. Total head requirement is the sum of elevation difference(A),special �:5:'T::;.:='�•= �;`:�"�':;:`'a:76.::;,.0.70 <br /> head requlrements(B),and iotal fridion loss(CA). � 5,60 0.82 <br /> 8 ft * 5 ft + 0.8 ft b5 6.48 0.95 <br /> 70 7,44 1.09 <br /> Total Head: 13.8 feet <br /> 3. Pump Selection • <br /> 1.A pump must be se{ected to deliver at least 28.6 gpm(1A or B) <br /> with at least 13.8 feet of bta!head 2D. <br /> I hereby 'fy t� have ted this work in accadance with all applicable ordinances,rules and I <br /> (s(gnature) L (lioense#) (date) <br />