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<br /> � PUMP SELF.(�ON PROCEDURE
<br /> . E/0 PERFORATION OF 4 PERFOliATEp �4TEAAL
<br /> A. Determine pump capacity: �-��
<br /> Gravity Distribution T.,..,,
<br /> 1. Minimum suggested is 600 gallons per hour(]0 gpm) to stay ahead of - . - • � a c«.��w�,k�d��.�
<br /> wacer use rate. � ,`"",5.�.",.' �"'°...�"°,. .,,°""""°
<br /> r�'��.�,...,o�-�
<br /> 2. Maximum suggested for delivery to a drop box of a home system is 2,700 ,. . M�=��^a���� ����^���"
<br /> „»� ,..a, ,>o
<br /> gallons per hour 4�_m)t prevent build-up of pressure in drop box. .•�,;p,„ a , _: R«.'��° `°°'
<br /> � � w.ao,w.'to�.,« ei
<br /> Pressure Distibution ����•.- �""'"" `•""
<br /> 3. a. Select number of perforated laterals -
<br /> on�.w s�� r..e.rry sv�iw
<br /> b. Select perforabon spacing= - feet �.,,,.,,,,M 5,,,,�,,,,
<br /> c. Subtract 2 ft from the rock layer length.
<br /> ����- 2 ft. _ �- feet
<br /> d. Deternune the number of spaces bet�veen perforations.
<br /> Length perf.spacing= '_ft. + -ft.= spaces Required Pertoabon D�n e
<br /> e. _spaces+ 1 = perforations/lateral u,�110�per a,;�,��e(gp�
<br /> f. Muldply perforations per lateral by number of laterals to DH��e �2.d�, i Pd�
<br /> get total number of perforations. ti��,� x �,,, �Q,,= perforations. �f�q
<br /> g' -7�* X a�ve+--'gP m.
<br /> SELECTED PUMP CAPACITY�gpm 1��JL. 1.Oa 0.56 0.74
<br /> 2.Ob 0.80 1.04
<br /> B.Determine head requirements: a. Use for single family 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. Fricdon loss
<br /> a. Enter friction loss table with gpm and pipe diameter. L Pipc Lrng�h
<br /> Read friction loss in feet per 100 feet from table. Poi�c of D'u�harg�
<br /> F.L = 3 ,a`� ft./100 ft of pipe Ys"
<br /> b. Deternune total pipe length from pump to discharge Elc�ation DiFfcrencc
<br /> point Add 2S percent to pipe length for fitting p�p _r)C
<br /> loss,or use a fitting loss chart. Equivalent pipe
<br /> ]ength - 1.?5 bmes pipe length= F-18b
<br /> I�t x1.25 =��feet
<br /> c. Ca]culate total fricdon loss b multi I n 1.5 inch 2.0 inch 3.0 inch
<br /> Y P Y� $ gpm �,;a�,ta.�,i ao n�r P+�
<br /> friction loss in h/100 h by equivalent pipe length.
<br /> Total friction loss= � �l x +100= feet 10 0.69 0.20
<br /> -�-•- -1-�- -� 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 0.48
<br /> 18 2.03 0.60
<br /> , 20 2.47 0.73 0.11
<br /> � 5 + - +�_ 25 3.73 1.11 0.16
<br /> �1� �2� (3�) 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� O.a8
<br /> 30 3.99 0.58
<br /> 55 4.76 0.70
<br /> C. Pump selection 60 5.bo 0.82
<br /> ; 1. A pump must be selected to deliver at least
<br /> ,_:% �-i gpm (Step A) with at least �� feet of total head (Step B).
<br /> wi A�-•
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