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.. . . � PITMP SELECTTOrl�'�I�T��C�D�TRE . . . <br /> 1. Determine pump capacity: <br /> .�i. Gravity disttibution , . <br /> 1. Minimum required'discharge is 10 gpm • ' <br /> 2. ,Maximum suggested'discharge is 45 gpm, For other� � � <br /> ..,�. <br /> establishzn�nts at Ieas�10?/o gre�tei��han the water supply rate, <br /> but no'faster than the�ate at which effluent will flow out of the <br /> disttibutiox�device. � . � � � � <br /> S. Pressure disiributivn . " ' � � <br /> See pressure�distributz•on work sheet <br /> From�A or B Selected�pump capaciiy: �=gp� : <br /> 2. D etermine punYp'head•requiremen#s: , . <br /> A. Elevatioz� difference between pump and point of clischarge? � � � so►I treatment sys�. <br /> �� feet . . , ' &p Int f ischa <br /> ' o:�P.a;d,:c:a>. <br /> B. Special head requirement? (See Figure at right-Special Head Itequi'rements) , total Ipe �`'O' <br /> 5 feet . , , lengt � <br /> lnlet � ` �.elevat(on <br /> C. Calculate Frictiozi loss ' . p�pe difference <br /> 1, Select pipe diameter a. O Lr ' ' '�'��' � <br /> , ,.. � ----•---------------•------ ---•- -o <br /> �c? <br /> 2. Enter Figure E-9 with gpaz(IA or g)and pipe diameter(C1). '' , <br /> Readfrictionlossinfeetper�00feetfromFigureE-9 ' Specta! Head �Requtrements <br /> Friction Loss =��,,ft/•100ft of pipe Gravity Ofstributlon o ft <br /> 3. Deternzine tofial p�pe length froni�pump discharge to soit treatment :Pressurc Distr(butfon 5 ft <br /> discharge poixzt. Estimate by adcting 25.percent to pipe length for • . <br /> fitting Ioss. Total pipe Iength times I.2S=equivalentpipe length ' ' <br /> `�S D feet x 1.25 = /�feet � � •E-9: Frtct�on Loss!n Plastic P1pe - <br /> 4. Cal'culate total friction loss by multiplying friction loss(CZ) • Por 10o tset <br /> in�ft/100 ft.b .the e uiyalent. i e•len . • nomina! <br /> Y q P'p gth(C3) artd divide by 100. . �ipa diameter <br /> = a, � ft/100ft x_ J_+100=_3_,!ft ' flow rate 1.5" 2�� 3�� <br /> m <br />�. Total head required is.the sum of e7evation diffezence A ea'aT�' 20 ' 2,47 0,73 0.11 <br /> head requirements.($), and total friction Ioss (C4) C ,�� 25 , 3,73 1,11 0,16 <br /> /C2� ft+_ � � ft�-_� �_ ' • 30 5.23 1.55 0,23 � <br /> Total head: `feef 35 6,96 2.ob o.so <br /> , � ' 40 8.91 2.64 0.39 <br /> . I'urnp selection . � 4� �� >>.0? 3,28 0,48 <br /> � 50 13,46 3,99 0,58 <br /> A pump must be selected to deliver at ieast��p� � g� 4,76 0.70 <br /> (1A or B) with at Ieast�,�feet of total head (2D) � 60 5.60 0,82 <br /> 65 6.48 0.95 <br /> • . 70 7,44 1,Q9 <br /> I hereby certit.y that I have mpleted this work in accordance with applicabl�ordinances, •,rules and laws. <br /> �' � (sigrtati.ue) 3� y I <br /> (license#) 'a`d —O Z (�at�) <br />