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� , PUMP SELECTION PROC�DURE <br /> ���� � <br /> 1. �Detennine pump capacity: <br />.,A. Gravity distrilbution <br /> 1. Minimum required discharge is 10 gpm <br /> 2. Maximum sugg ted discharge is 45 gpm. For other <br /> ; <br /> establishrnents at least 10%greater than the water supply rate, <br /> but no faster th the rate at which effluent will flow out of the <br /> distribution dev�e. <br /> E. Pressure �istnbuti�n <br /> See pressure disi�ribution work sheet <br /> From A or B Selecited pump capacity: �_gpm <br /> 2. Determine pum�p head requirements ���1-�„� <br /> A. Elevation difference 1�etween pump and point of discharge? s��#ree#�eRt�ystem <br /> &.�peic�ef-�iseberge <br /> __�_feet 9o-a <br /> B.Special head requirement?(See Figure at right-Special Head Requirements) totai pipe <br /> leng <br /> "r feet 2A.ele on <br /> inlet differ nce <br /> C. Calculate Friction loss Pk� <br /> ------- -- - <br /> 1. Select pipe diame�er a`� in �S c� <br /> --------------------- ---- ----- , <br /> 2. Enter Figure E-9 wfth gpm(lA or B) and pipe diameter(Cl). <br /> Read friction loss i�feet per 100 feet from Figure E-9 Specia) Head Require ents <br /> Friction Loss= I ,� 1 ft/100ft of pipe Gravity Distribution 0 ft <br /> 3. Determine total pi�e length from pump discharge to soil treatment Pressure Distribution 5 ft <br /> discharge point.gstimate by adding 25 percent to pipe length for <br /> fitting loss.Total pipe length times 1.25 =equivalent pipe length E-9: Friction Loas in Plast c Plpe <br /> J o feet x 1.25 =�.3_feet per 100 fset � <br /> 4.Calculate total fric�ion loss by multiplying friction loss(C2) nomino <br /> in ft/100 ft by the equivalent pipe length(C3)and divide by 100. pipe dio ter <br /> - !�� ft/100ft x �a +100=�_ft flo mrate 1.5" 2" 3" <br /> D. Total head required ds the sum of elevation difference(A),special � 2.47 OJ3 0.11 <br /> head requirements QB),and total friction loss (C4) 25 3.73 1.11 0.16 <br /> S ft+ ft+�1_ft= � 5.23 1.55 0.23 <br /> 35 6.96 2.06 0.30 <br /> Tota1 head: �_feet ao s.9� 2.ba o.39 <br /> 3. Pu�p selection a5 �i.o� s.2e o.ae <br /> 5fl 13.46 3.99 0.58 <br /> 55 4.76 0.70 <br /> A pump must be sele ted to deliver at least a S ,�pm bp 5.60 � 0.82 <br /> (lA or B)with at least��_feet of total head (2D) �,5 6.48 ' 0.95 <br /> 70 7.44 1.09 <br /> I hereby certify that I ha e completed this work in accordance with applicable ordinances, rules and la . <br /> ?"I �-J3 -(� � date <br /> ��� ��� (signature) (license#) 3+ ( ) <br /> I <br />