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� ; '� . � � , PUMP SELE�CTI�3�T���taC�D�J`ItE � <br /> 1. Determine pump capacity: �W'►�� �:.�.. � <br /> A. Gravity distribution . . <br /> 1. Minimum reqvired'discharge is 10 gpm • ' <br /> 2. .Maximurn snggested'discharge is 45 gpm. For other� . . . <br /> establishm�ts at leas�1�°�o g•re�tei �#t�a�the water supply�rate, <br /> but no'faster than the rate at which e�fl�iertt wiII flow out of the � <br /> disttibution device. . � ' <br /> B. Pressure distribution . '� . ' � � <br /> See pressure�distri7rution work sheet <br /> From�A or B Selected•pump capacity: � r� gpm : <br /> 2. D etermine pump head•requiremen#s: . . <br /> �titiL�1��� <br /> A. Elevatioa clifference between pump ar�d point of clischarge? � • sol►treotment syster <br /> � feet . . ' &p I t f ischargE <br /> ..9�.;awQ•�• /01.0 <br /> B. Special head requirement?(See Figurc at right-Special Head Requirements) . �atal Ipe <br /> � -- feet . • • 2A.elevatlon <br /> � Inlet difference <br /> C. Calculate Friction loss ' . p�pe <br /> 1. Select pipe diameter a.c� in � ' ' � ��� � <br /> , :.. - ........................... .....:93.0 <br /> 2. Enter Figure E-9 with gpnl(lA or B)aild pipe diameter(C1). . <br /> Read frictian loss in feet per 100 feet from Figur+e E-9 • S e c i a l H e a d R e q u t re m e n t s <br /> Friction Loss= �� � ft/•100ft of pipe ravity Distri ut on o ft <br /> 3. Determine total p�ipe length frorri'pwr�p d3scharge to soil treatitient :p�sure Dt§tribution 5 ft <br /> discharge point.Estimate by add3ng 25 percent to pipe length for • . <br /> fitting loss. Total pipe length iimes 1.25=equivalent pipe length �.r._ � <br /> �� � feet x 1.?S =��eet � � �-9:FrictJon Loas in Plaatic P(pe - <br /> 4. Cal'culate total friction loss by multiplying friction loss(C2) � Por 100 toet <br /> in�ft/100 ft�b .the e valeat. ' e•1 . � nominol <br /> Y �. P1P �&���)����de by 100. �ow rcte 1.�Ipo dZamete3�� <br /> _ 1 , � I ft/100ft x ��_+100=_J �ft � m <br /> D. Total head required is.tlte sual of elevatlon difference(A�,speaal'` 20 ' 2.47 0.73 � 0.11 <br /> head requirements.($), and total friction loss (C4) 25 3,73 1.11 0.16 <br /> � _ft+ �ft+- �=,�#a ' . 30 5.23 1.55 0�23 ' <br /> Total head: `� 'feet , 35 6.96 2.06 a3o <br /> ' 40 8.91 2.64 0,39 <br /> 3. Purnp selection ' � � 11.07 3,28 0,48 <br /> � 50 13.46 3.99 0,58 <br /> A pump must be selected to deliver at ieast_. �.�! .gpm • � 4.76 0.70 <br /> � 5.60 0.82 <br /> (1A or B) with at least_�_feet of total head (1D) � 6,5 6.48 0.95 <br /> . 70 7.44� 1,09 <br /> I hereby certi�y th�hav �comp�eted this work�in accorciartce witti appl�cable ordinaiices, :rules and laws. <br /> != <br /> �.. ��, �o.- (sig�tature) 3�1� (license#) 3 -�-.b'z__ (date) <br />