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� ' F-17 <br /> � Pi�iP SELECTTON PRO ED mF � <br /> a <br /> FTD PERFORA710N OF � PERFORITED L-TERaI <br /> .�. Determine pump capadty: `�� <br /> Gravity Distribution r- <br /> 1_ Minimum suggested is 600 gallons per hour(10 gpm)to stay ahead of T� <br /> ��/pf IA Gw1�ftY�O�`K fv�/� <br /> Wd�1152 Ta�. ':-las��Ser�pv' rri M�M rr�a�w rw..� <br /> .' .M w�rww�+�/ <br /> ? Maximum suggested for delivery to a drop box of a home system is 2,700 �..+.,.��,o,.�..,,.,,.,,p,. <br /> S�lons r hour(45 m)to revent build-u of ressure in dro box. , ~~`•`r~"` '~ <br /> Pe SP P P P P ti-.,.. . .,U.. �:•�.��„ <br /> N q�yn tq„� <br /> Pressure Distibution : . • . 'r'�"����« <br /> ; . CM�S��VR h�rw d 4�rv <br /> 3.a. Select number of perforated laterals 3 ' <br /> b. Select perforation spacing- �feet ��•y,���. <br /> c Sub/trfa �2 ft from the rock layer length. <br /> ��-2 ft.= S'z feet <br /> d. Deternune the number of spaces between perforations. <br /> Length perf.spacing=�ft.+�ft._�spaces <br /> e. �spaces+1 =��perforationsllateral ��P�a�nD�sch�` <br /> gallcns pet atinute(gpmj' <br /> f get totPal n emberr of peo rations�b�umber�f laterals to erforations��� �d e '�2�'�` i•�R'' <br /> .�.�,. �-�_-�_P c� <br /> g• � X '�P,,= '-�� 8P�• . <br /> 1.Oa 0.56 0.74 <br /> SELECTED PUMP CAPACITY��BPai 2.OI� 0.80 I.O4 <br /> B.Determine head requirements: <br /> 1- Elevation difference between pump and point of discharge. a.Use for single family homes <br /> .�_feet b.Use for all other applications <br /> � 2. If pumping to a pressure distribution system,�ive feet for pressure <br /> requimd at manifold if gravity s�stem,zero. <br /> S feet <br /> 3. Friction loss <br /> a. Enter friction loss table with gpm and pipe diameter. P;pe L,eng�, <br /> Read hiction loss in feet per 100 feet from table. ' � <br /> F.L= �.Vu ft./100 ft of pipe Poinc of Dixhm <br /> T�o� <br /> b. Determine total pipe length from pump to discharge pevaaon Differrnce I <br /> point Add 25 percent to pipe length for fitting � ��� <br /> loss,or use a fitting loss chart. Equivalent pipe p <br /> length-1.25 times pipe length= <br /> /3 S x 1.25= J��i feet F-18b <br /> c. Calclilate total friction loss by multiplying 1S inch 2.0 inch 3.0 inch <br /> � Friaim los�per loo a ot pipe <br /> friction loss in h/100 ft by equivalent pipe length. <br /> Total friction loss= L�-I x /la 9 +100=�_feet 10 0.69 0.20 <br /> 4• Total head r uired is the sum of elevation difference, 12 0.% 0.28 <br /> . � 14 1.28 0.38 <br /> special head requirements,and total fricdon loss. 16 1.63 0.48 <br /> 18 2.03 0.60 <br /> ►y + � + � 20 2a� 0.�3 0.i i <br /> u s.�3 i.ii o.ib <br /> �1� (2) (3c) 30 5.23 1S5 0.23 <br /> 35 7.90 2.06 0.30 <br /> TOTAL HFAD �-�_feet • � 11.07 2.64 0.39 <br /> 45 14.73 3.28 0.48 <br /> 50 3.99 0.58 <br /> G Pump selection ss a.�6 0.�0 <br /> �o s.�o o.s2 <br /> � 1. A pump must be selected to deliver at least <br /> �_gpm (Step A) with at least �4 feet of total head (Step B). <br />