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� F-17 <br /> � PiIMP SFT.F['rTC)N PROCEDURE <br /> E1p PERFOfiAT70H OF A PERFORATED l'+TEFAL <br /> � Dekezmine pump capadty: w�•�•• <br /> Gravity Disfribution r,,.e„ <br /> 1_ Minimum suggested is 600 gallons per hour(10 gpm) to stay ahead of _ :..- - <br /> �'�L�r�a��� Loyr ef GeeNnW Foblt(V 1v• <br /> Wa�T ILSe rdt2. 'rR��+or.ei nor s a.�...a <br /> � .�,�'.a,o.+,o=o.�i. <br /> 2 Maximum suggested for delivery to a drop box of a home system is 2,700 _ . �+�,�tr��� ��=����h <br /> tiro tno ra.or ioo <br /> gallons per hour(45 gpm)to prevent build-up of pressure in drop box. �,,;R,� _., ,.�„ ,2•„E��, <br /> n.�e of Roct u�.r <br /> ... . � Prlxmbn LscatH ot <br /> Pressure Distibufian ��••"�,�,� �'"°",«�•�•"� <br /> 3_a Select number of perforated laterals 3 <br /> b. Select perforation spacing=�_feet �,��'�„�''"° <br /> c Subtract 2 ft from the rock layer length. <br /> �- � -2 ft=�( S�feet <br /> d. Dete�ine the number of spaces bet�veen perforations. <br /> Length perf.spacing=�_ft.+ 3 fc.= a a. SPaceS Required Perforaeon Discha�ge <br /> � �_SpaCeS+ 1=�PPSfOrdtiollS/1dt�Id1 u�gallons per minute(gpm) <br /> f_ Multiply perforations per lateral b� numbe�f]aterals to ��3Z ��d8e �Zm�� i Ad� <br /> get total numberof perforations. ,���� x �s t�= �i perforations. �f��� <br /> g- 1� x�P„�_�`_'SPm. <br /> 1.Oa 0.56 0.74 <br /> SELECTED PUMP CAPACITY�gpm 2.�b �.g� 1.�4 <br /> B_Determine head requirements: a.Use for single family homes <br /> 1. EIevation 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�stem,zero. <br /> �_feet <br /> 3. Friction loss <br /> a. Enter friction loss table with gpm and pipe diameter. Pipe L«�grh <br /> Read friction loss in feet per 100 feet from table. � poinc of D�scharge <br /> F.L= ,�. le ft./100 ft of pipe a��. <br /> b. Deternune total pipe length from pump to discharge Flevadon Difference� <br /> poin� Add 25 percent to pipe length for fitting p�P _��3 <br /> loss,or use a fitting loss chart. Equivalent pipe <br /> length-1.25 times pipe length= <br /> �D x 1.25=���feet F-18b <br /> c. CalCulate total friCtion loss b multi I n 1.5 inch 2.0 inch 3.0 inch <br /> Y P Y� g �m Friaim loct per 100 R of pipc <br /> friction loss in ft/100 ft by equivalent pipe length. <br /> Total hicdon loss= a,l� x Sv +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 friction loss. 16 1.63 0.48 <br /> 18 2.03 0.60 <br /> 20 2.47 0.73 0.11 <br /> �. + � +�_ 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 /> 40 11.07 2.64 0.39 <br /> TOTAL HEAD �_feet � 45 14.73 3.28 0.48 <br /> 50 3.99 0.58 <br /> 55 4.76 0.70 <br /> G Pump selection bo s.6o 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 />