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� F-17 <br /> PiJMP SELECTTON PROCEDUR& <br /> .. � E)�D PERFORAT�ON OF A PERFORATED IATERAL <br /> A. Determine pump capacity: w-•w« � <br /> Gravity Distribution T.,..,, <br /> 1. Minimum suggested is 600 gallons per hour(10 gpm)to stay ahead of r:�•� ••��"-- <br /> . �•�•w�r saw taNr •�"w c»»ew rawk�o.ia.- <br /> . � WBte'I ll$e Td�. . . •'Mre�rw„yeprj ra�cwww <br /> 2. Maximum suggested for delivery to a drop box of a home system is 2,700 , ��^��^a�����t°^�°��, <br /> NM Ca0 War Tw <br /> gallons per hour(45 gpm)to prevent build-up of pressure in drop box. ,.,;P„„ .;-u�a.� �:•�.Eay� <br /> �. .�w«��,« <br /> �::;•::�::. .. _. . . <br /> . RAaaNir lau�M a� <br /> Pressure Distibution � ���� �""""`°""' <br /> 3.a. Select number of perforated laterals 3 <br /> b. Select perforation spacing=_�feet °fj"°'�'"'"°�"'�"'"° <br /> e.i...v�.�.sw�..n. <br /> c. Subtract 2 fti from the rock layer length. <br /> �� -2 ft._�.�_feet <br /> a«k rre�u <br /> d. Deternune the number of spaces between perforations. <br /> Length perf.spacing=�.ft.+�ft._ �� spaces Requiied Perforation Diseh e <br /> • e. ,�spaces+1=,�_perforations/lateral �+�u°���+�+°te c�*'"`� <br /> f. Muldply perforations per lateral by number of laterals to 7�3���+q. DH��Se ;�z maP,, �a�,,�, <br /> get total number of perforations. ,�-3; x �„ ,�_�perforations. (fe�U <br /> g� � X��`-�gp� 1.Oa 0.56 0.74 <br /> SELECT'E'D PUMP CAPACTTY��gpm 2.�b �.8� 1.04 <br /> B.Determine head requirements: a.Use for single famil'y homes <br /> 1. Elevation difference between pump and point of discharge. b.Use for all other applications <br /> ,�) feet <br /> 2. If pumping to a pressure distribution system,five feet for pressure <br /> required at manifold if gravity system,zero. <br /> �_feet <br /> 3. Friction loss <br /> a. Enter friction loss table with gpm and pipe diameter. , �P��8� , <br /> Read friction loss in feet per 100 feet from table. � poinc of Discharge <br /> F.L._ .�,l. f�/100 ft of pipe /��� <br /> b. Determine total pipe length from pump to discharge pevation Difference� <br /> point. Add 25 percent to pipe length for fitting p�p ��� <br /> loss,or use a fitting loss chart. Equivalent pipe <br /> length-1.25 times pipe length= F-18b <br /> �4� x 1.25= D(� feet 1.5 inch 2.0 inch 3.0 inch <br /> c. Calculate total friction loss by multiplying � fr;a;a„i«.��oon,rP;a <br /> friction loss in ft/100 h by equivalent pipe length. 10 0.69 0.20 <br /> Total friction loss= '�.• le x 3v0 +100= � feet 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 friction loss. 16 1.63 0.48 <br /> 18 2.03 0.60 <br /> 20 2.47 0.73 0.11 <br /> 2.7 +�_+ `d� ?S 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 /> 40 11.07 2.64 039 <br /> TOTAL I-IF.AD U b feet � 45 1a.73 3.28 � 0.48 <br /> 50 3.99 0.58 <br /> 55 4.76 0.70 <br /> C. Pump selection bo s.bo o.s2 <br /> 1. A pump must be selected to deliver at least <br /> �gpm (Step A)with at least _ � �feet of total head (Step B). . <br />