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� PUMP SELECTIOh7�PTZOC�T�UIZE� <br /> � � ' � • "Pv v"�� ��, w.-��- -r'�w,���;� <br /> 1. Determzne pump capacrty: <br /> A. Gravity distribution . <br /> 1. Minimum required'discharge is 10 gpm � <br /> 2. Maxirnum suggested'discharge is 45 gpm. For other� � <br /> establishments at,leas�10%gre�ter than the water supply rate, <br /> but no faster than the rate at which effluent will flow out of the <br /> disttibution device. � � <br /> B. Pressure distribution . �� � � <br /> See pressure�distribution work skeet <br /> From A or B Selected�pump capacity:=gp� <br /> 2. Determine pump�head�requiremen#s: <br /> A. Elevation difference between pumg and point of discharge? � • ���o�-��"�? <br /> n <br /> feet &-polfl#-of disch�argE <br /> O�f°��:9;i �'� 7.( <br /> B. Special head requirement? (See Figure at right-Specutl Head Requirements) , total Ipe <br /> '-" feet lengt <br /> Inlet � ` 2A,elevatlon <br /> C. Calculate Friction loss � p�pe difference <br /> 1. Select pipe diameter a. 0 iri � � �...�� <br /> � ' __�11 <br /> --------------------------- - <br /> 2. Enter Figure E-9 with gpm (lA or B) and pipe diameter(C1). . <br /> Read friction loss in�feetper 100 feet from Figure E-9 Special Head Requirements <br /> Friction Loss = 1 . ) 1 ft/�100ft of pipe Gravity Distrjbution 0 ft <br /> 3. Determine total pi�pe length from�pump discharge 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 <br /> l v. feet x 1.25 =�,�„__feet E-9: FrictJon Loss In Plastic Pipe - <br /> 4. Cal'culate total friction loss by multiplying friction loss(C2) � Per 10o teet <br /> nomtnal <br /> in ft/100 ft,by,the equiyalent pipe•length(C3) and divide by 100. pipe dicmeter <br /> - � . 11 ft/100ft x l � . +100==ft �ow rcte 1.5" 2" 3" <br /> . m <br /> D. Total head required is.the sum of elevation difference (A�,special� 2� 2.47 OJ3 0.11 <br /> head requirements.(B), and total friction loss (C4) 25 3.73 1.11 0.16 <br /> � ft+�ft+ / �}= 30 5.23 1.55 0,23 � <br /> Total head: '� feet 35 6.96 2.06 o.so <br /> � 40 8.91 2.64 0.39 <br /> 3. Purnp SeleCtiOn 45 � 11,07 3,28 0.48 <br /> 50 13.46 3,99 0.58 <br /> A pump must be selected to deTiver at least . ���'� �,m � 55 4.76 0.70 <br /> 60 5.60 0,82 <br /> (1A or B) with at least�_feet of total head (2D) 65 6.48 0.95 <br /> . 70 7.44 1,Q9 <br /> I� I hereby certify that I have completed this work in accordance with applicable ordinances, �.rules and laws. <br /> i�`�-- � ----'---- -- ., � - <br /> � v ' � - -�" �^ (signature} �" ° �-I (license#) � � � o^� (date <br /> ) <br />