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. . ., . � , PUMP SELE�TIO�l`J�PTZ��CED�TRE <br /> 1. Defermine pump capacify: � <br /> A. Gravity distribufion . . <br /> 1. Minimum requ�recT discharge is 10 gpm • � , <br /> 2. ,Maxixnum suggested'discharge is 45 gpm, For other� � � � � <br /> ..,�. , <br /> establish�n�nts at leas�10°�o gre�te'r�han the water supply rate, ' <br /> but no faster than the rate at which effl�ient will flow out of the � <br /> disttibution device. . � ' ' <br /> S. Pressure distribu#ion . " . ' � <br /> See pressure�distribzition work sheet <br /> From�A or B Selected�pump capacify: �q . gpm : <br /> 2. D etermine pun7p'head�requiremen#s: , . � <br /> A. Elevatioz� clifference between pump and point of clischarge? � • sol►treotment systE <br /> `''/ feet . • ' &p Int f discharc <br /> • • a:'9a,a�e:'•;. <br /> B. Special head requirement7 (See Figure at right-Special Head Requi'rcments) . total Ipe D��S <br /> lengt � <br /> � � feet . • • 2A,elevatlon <br /> � � Inlet � ` difference <br /> C. Calculate Friction loss ' � . pipe <br /> . . • . . . . .----•- -- - � <br /> 1. Select pipe diameter � in <br /> • • a , <br /> .' � � . ......"""•"..."""" "'•'.���o(� <br /> 2. Enter Figure E-9 with gpm (lA or B) and pipe diameter(C1). . <br /> Read friction loss in feet per 100 feet from Figure E-9 ' S p e c(a! H e a d R e q u I re m e n t s <br /> Friction Loss = �Z_S� �,ft/•100ft of pipe Grav(ty D(str�but(on 0 ft <br /> 3. Determine total p�pe length frozzi�pump discharge to soil treatment :pressure Dlstributfon 5 ft <br /> discharge point. Estimate by adding 25 percent to pipe length for � . <br /> fitting loss. Total pipe length times.l.2S=equivalent pipe length .�.9� Frictlon Loss(n Plastic P(pe - <br /> '�S' feet x 1.25 = �� feet � � , <br /> • Per 100 fes! <br /> 4. Cal'rulate total fri¢tion loss by multiplying friction loss (C2) • riominal <br /> in�ft/100 ft.by,the eqtuyaleatpipe•length�C3) and divide by 100. ' plpe diometer <br /> — 2• lo ft/100ft x__��_,_�_+100=_ a ft ' t►ow rate i.5" 2'� 3" <br /> . • , m <br />�. Total head required is.the suui of e7evation diffexence (A�,spea�al��' 20 ' 2,47 0.73 � 0.11 <br /> head requirements.($), and totalfrictionloss (C4) � 25 . 3.73 1,71 0,16 <br /> Ql� ft+ S � ft+ Z ft= ' . 30 5.23 1.55 0,23 ' <br /> Total head: `feet , � 35 6.96 2.06 0,30 <br /> • 40 8.91 2.64 0.39 <br />�. Pump selection . � 4� � 11,0? 3.28 0,48 <br /> • 50 13,46 3,99 0.58 <br /> � • '.� 55 4.76 0.70 <br /> A pump must be selected to deliver at ieast�,��rm 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� 1,09 <br /> I hereby certif.y that I have comp�eted this work in accordance with applicable ordinances, :rules and laws. <br /> �� � �, <br /> �)�� %� � (sigilatiue) 3�? � (license#) _ '� — )—•OZ (date) <br /> � <br />