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PtrMp S�.i.Fc'i'ioN PROCfiDURB <br /> A. Determine pump capadtq: <br /> Gravity Diatributlon <br /> 1. Minimum suggested is 20 gpm <br /> 2 Maxim11II1 Stlg$e9ted�S 4S gj�II1 Perioratlon Dlachugd in GPM <br /> Head Pcrforaaon dtaa,ecer ' <br /> Pr�sure Distibution feet lncha <br /> 3.a. Select number of perforated laterals=_ � 32 1 4 <br /> b. Select perfomtion spacin$s =fK� 1.Oa OS6' 0.74 <br /> c. Subtract 2 h,froal the rock layer length. 1.5 0.� 0.90 <br /> 20� o.so i.a <br /> �wr�;�,-2 f���fee� ' <br /> a Use 1A foot dn homa. <br /> d. Detera�ine the number of spaces betwgen perforations. b v�e 20 leet(or anyt�g cl,e. <br /> Length perf.spadng�2�.�*��'�-.spaces <br /> e. �y,.spaces+1 a�_perforationa/lateral <br /> f. Multiply perforations per lateralby nualber of laterals to ����'v„a . <br /> g,,e/t total nlu'mber of perfontions. � x .�=2�.perfora ons. <br /> g. � X�,y.7�G,.n y3�II1. <br /> �D�P� <br /> SELECTED PUMP CAPACTTX ..,�_$pff► <br /> B.Dete:mine head requiremenb: <br /> 1, Elevation difference between pump artd point of discharge. <br /> �_feet <br /> sou a.,��n�, <br /> 2, If pumping to a pressure distn�ution system,five feet for pressure <br /> required at manifold if gravity system,zero. �'� �`' <br /> '� _feet �°�P'�"rt" <br /> 3. Frlction loss <br /> a Enter friction loss table with gpm and pipe diuneter. a�.,-.�our.�« <br /> Read friction loss in feet per 100 feet from table(F-14). �'P' ,_,,,,, „ <br /> F.L.a �_�fti/100 ft of pipe ' � - u ;, <br /> b. Deteraliste total pipe length hom pump to discharge <br /> ..................................... � ; <br /> point Estimate by edding 25 percent to pipe length for fitting <br /> loss,or use a Etting loss chart(F-15._�eet). <br /> Equivalent pipe len -1.25 ttmes pipe length a � ' - <br /> x 1.25=-�-feet Friction toss in PlastiC Pi e <br /> c. Calculate total friction loss by multlply3ng <br /> friction loss in R/100 h by equivalent pipe length. � No� <br /> feet p� <br /> Total frlction loss• 'a•, x �i `'_+100 m�_ Flow Rate 1S� 2� 3� <br /> 4. Total heed required is the sua�of elevation difference, �� <br /> special head requirements,and total friction loss. <br /> 20 247 0.73 0.11 <br /> � + � _+ 3 25 3.73 1.11 0.16 <br /> ' (1) (2) (3c) 30 .5.23 1.55 0.23 <br /> 35 6.96 206 0.30 <br /> 40 8.91 264 0.39 <br /> TOTAL HEAD 1� feet 45 11.07 `3.28 0.48 <br /> 50 13.46 3.99 0.58 <br /> 55 4.76 0.70 <br /> C, pump selection bo s.bo o.s2 <br /> 65 6.48 0.95 <br /> 70 7.44 1.09 <br /> 1. A pump must b'e:selectyed to deliver at least <br /> ,�_gpm (Step A)..with at least �feet o#lotal heati (Step B). <br /> � <br />