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` � F-l 7 <br /> � PL. SELECTIQNPRO�� <br /> F!D >EkfCftATIOM CF • PERFOR�T� L:.�i f..� <br /> A Deterc�u+e pump capadly. G..�... <br /> Gravity Distribution T,,,.,, <br /> I. Minimnm suggested is 60Q gallons per f:our(10 gpm?ta stay ahead of �z;.. . . - - <br /> �t fwrr+s iere tr�• <br /> water use rate. ' "^'"'"" ����~��'T w� <br /> M�MM w�) <br /> 2_ Maximum suggestcd for delivery to a drop box of a home system is 2,700 ►-�-.��.a.�.�-.-..,, <br /> M 4�1�� �w <br /> gaIlons per hvur(45 gpm)to pre��ent build-vp of pressuze in drop box. ,,,•,,,� -N 1.,,. ,r�.c�r <br /> . .,�..,., <br /> �.: ..�...�::�...�.« <br /> Pzessuze D'utibution . c�..,s«u,. �"'•^�'L'+^' <br /> 3.a. Se�ect number of perforated taterais 3 <br /> b. SeJe�t perforatian spadng= 3 feet °"""�"'^'�"'�'�"�' <br /> a.i..rr..�s...i�r., <br /> c. Subtract 2 ft.from the rock layer length. <br /> �L�-2ft.=�(_�feet <br /> d. Deiemune the number af spaces bei�veen}�erforations. <br /> I.ength perf.spacing=y�ft-+�_ft._�spaces �,,;,,�p�,ea, t <br /> e. �spaces�1=��Ferforationsll ateral ,n�:Uons per au„vtD� <br /> f. Multipiy perfora�ons per Iaterat b`�namber of laterals to ��3a' �� ,-��2�a� `�� <br /> gettotalnumberofperforations. w��� x���=.,lc�perfarafions. ��H� <br /> 8• � X�i2�r=�-SP�- . <br /> 1.Oa O.S6 0.74 <br /> S�LECT�'DPUMPCAPACriY 3c'�_gpm 2.��3 �.$0 1.0� <br /> 8.Determiz►e head requirem�nts: a.Use for single family homes <br /> �. Elevation difference bercveen pump and point of discharge. b.Use for alI other app;i�ations <br /> ?�feet <br /> � 2. If pumping to a psessure distribution system,five feet for pressure <br /> required a!rnanifold if gavity system,zero. <br /> __�,�feet <br /> 3. �riction loss <br /> a. Entet friction loss table with gptri and pipe diameter. P�v��e� <br /> Read friction Ioss in feet per 100 feet from table. F '-' <br /> F.L= �.�h./100 ft oE pipe Poin=of p� <br /> b. Determ;ne total pipe lengih from pump to discharge n��,�;�,p��,«� <br /> point. Add?5 percent to pipe length for fitting �p _ �� <br /> loss,or use a fitting loss chart. �quivalent pipe <br /> Iength-1.25�mes pipe iength- � <br /> ��1 c x 1.2$��3_feet F-I8b <br /> c. Calctilate total friction]oss b mu3ti 1 n 1.5 inch 2.�inch 3.0 inch <br /> Y P Yt S ggcn �,:�;o,i�y��oo n�p;� <br /> fricfion toss in h/I00 ft by equivaleni pipe length. <br /> Total friction ioss= {l�� _x �.u +]00-��_feet �� �•� 0.20 <br /> 12 0.96 0.28 <br /> 4. Totai head rec}uired is the sum of elevalion difference, 14 2_2S 0.38 <br /> speciaJ head requirements,and total frir�on Ioss. 1G 1.63 O.aB <br /> 18 2.03 0.64 <br /> � 20 247 0.13 d.11 <br /> 3'7 + + ) �� ]S 3.73 7.I 1 0.16 ' <br /> (�} (2� {3c) 34 5.23 1 SS 0.23 <br /> 35 7.94 2.06 0.3fl <br /> TOTAL HFAD �_fee! • � 11.0? 2.54� 039 <br /> 45 1 a.?3 3.28 O.aB <br /> 50 3.99 0.58 <br /> SS 4.76 0.70 <br /> C. Ptu�ip seIection 6o s.6o o.s2 <br /> � i. A pump must be seiecred to deliver at Ieast <br /> 3�_gp� (Step A)with at least �Z feet of total heasi(Step 8). <br /> 8'd dJ0�9P•lIQ�If1a�3J,03 Ib:60 96, tt N�tf <br />