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� , , ` <br /> ' F-17 <br /> FLJMP SELECTION PROCEDURE <br /> •EJ�G PERFORATWM OF A PERFORATEp �ATERCL <br /> A. Determine pump capacity: �,�,�..., <br /> Gravity Distributiun T�,,, i�, <br /> 1. Minimum suggested is 600 gallons per hour(10 gpm)to stay ahead of _ ::. .. � N��w�,���„�,. <br /> water use rate. ���..�►5.�.�,. �T'�.�.«�.,..�,..v,.... <br /> `�,��,...,�.., <br /> 2. Maximum suggested for delivery to a drop box of a home system is 2,700 . ���-���������h <br /> MM C�0 Nw Tp <br /> gallons per hour(45 gpm)to prevent build-up of pressure in dmp box. ,.,;,„,,,� .;_���, ,�,Eeye <br /> Pressure Distibution -, e�..�s.�.�,,. ��""�~�� <br /> Y��rs N Uum <br /> 3.a. Select number of perforabed laterals 3 , <br /> b. Select perforation spacing= 3 feet �'„;';��,�'"° <br /> c. Subtract 2 h.from the rock layer length. <br /> �-��-2 ft._ � _feet <br /> d. Deterrrune the number of spaces between perforations. <br /> Length perf.spacing= r_� Et.+�ft._��spaces tt�qyirnd perforaaon D�schacge <br /> e. 3 spaces+ 1 =�perforations/lateral �+��p����e�SPm� <br /> f. Multiply perforations per lateral by number of laterals to ��e �z�� i q�� <br /> get total number of perforadons. ,�-�� x �,-��_�perforations. ��� <br /> g' � X�+`�=�L gp� <br /> 1.Oa 0.56 0.74 <br /> SELE�.TED PUMP CAPACTI'Y�_gpm 2.�b Q.8� 1.04 <br /> B.Determine head requirtmmts: a.Use for single family homes <br /> 1. Elevation difference between pump and point of discharge. b.Use for all other applications <br /> _J_{�_feet <br /> 2. If pumping to a pressure distribudon rystem,five feet for pressure <br /> required at manifold if gravity system,zero. • <br /> �_feet <br /> 3. Friction loss <br /> a. Enter Eriction loss table with gpm and pipe diameter. Pipe I-engch <br /> �_ <br /> Read friction loss in feet per 100 feet from table. � Poinc of Discharge <br /> F.L._ �. l, f�/100 ft of pipe �oo� <br /> b. Determine total pipe length from pump to discharge pevation Difference <br /> point. Add 25 percent to pipe length for fitting �p _ ���.� <br /> loss,or use a fitting loss chart. Equivalent pipe <br /> length-1.?5 times pipe length= F-18b <br /> ) Sc7 x 1.25 = I� feet 1.5 inch 2.0 inch 3.0 inch <br /> c. CalCulate total friction loss by multiplying � F,;a;a,��,�n�P,a <br /> friction loss in h/100 h by equivalent pipe length. <br /> Total friction loss= �.l. x t�d S� +100=�_feet 10 0.69 0.20 <br /> 12 0.96 0.28 <br /> 4. Total head required is the sum of elevation difference, 14 1.28 0.38 <br /> special head requirements,and total fricdon loss. 16 1.63 O.a8 <br /> 18 2.03 0.60 <br /> 20 2.47 OJ3 0.11 <br /> / (. + S +_� 25 3.73 1.11 0.16 <br /> (1) (2) (3c) 30 5.23 1.55 0.23 <br /> 35 7.90 2.06 0.30 <br /> TO?AL HEAD a � 11.07 2.64 0.39 <br /> �_feet 45 14.73 3.28 0.48 <br /> 50 3.99 0.58 <br /> C. Pump selection 6o s bo o.s2 <br /> 1. A pump must be selected to deliver at least <br /> �g_gpm (Step A)with at least ��feet of total head (Step B). <br />