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<br /> `•..� „iTqip q�C�ZL�U pfiU '�� �7i�
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<br /> �r�p �riow a .� K�:r�,�� �+T:
<br /> A. D�termine pump capzdty: �-`'".c�.-
<br /> Gravit}�•Distribution """"
<br /> 1. �tirumurrt sugg�ested is 600 gallons per hour(10 gpm) to s:ay ahead of -::: ,,�,,..,.�,.r � .W w:«';.'���
<br /> water use rate. '" �r'"""�
<br /> : hiaximurn su�,�estrd for de?ivery to a drop�x of a home system is 2,�G0 y u;�:"„"'"
<br /> gailors pe~!�ccu'i45 gpm) to ptevent buiid-up oi pressure in�'rpp box• �,�. , -+; ;,,�; ',,;;;.
<br /> �.�....�,�`.�.e.w...�
<br /> .. pr�Y�Ur� M�wr�M u�w
<br /> Pressure D'utibutian �
<br /> 3,a. SeIect number of perforated laterals ����N �,�,�„�,�
<br /> b. Selec-t perfaratian spating= .�- 0 fee� •••�••-•»•••�,•
<br /> c. Su�tra_ct � :� from the rock layer length. � -
<br /> �-�-2 f��.�Q. 5 fee�
<br /> d. L�eterrrune t�,e number of spaces between perforations.
<br /> I.eng;h perf. sF�a,cing a�ft.+�ft.- 2 O spaces R•qui,.d PQt�.�n a�na�3�
<br /> e, �D spaces� 1 =..�_pe.rforattoasJlafual
<br /> �n gtllons pa aunut�(RpnS
<br /> f. htuldply perforadona pes lateral by number of laterals to� ��'�' �2�r. � ,a
<br /> t cotal number of perforations.� x�- �-3 perforatioas.
<br /> g• x ,7*r
<br /> � ��..�=�gpm- 1.�Ja O.5b ! 4 "
<br /> SELECI"ED PtJ;� CAPACTTY �� $Pm 2.Q�7 O.HO i I.0
<br /> B.Determine he�d nquiremu,ts: t1. Use for 5ingle famiiy hamr
<br /> 1. Elevation �jifference between gump and point of discharge. b. Uye fpr ali pther ap�l:cab�
<br /> �feet
<br /> '�. If pumpin�to a pressure distrfbutSon system,five ieet for pressvre
<br /> �- :equircd a: rnanii�ld if�ravity system,zero. .
<br /> c' itet
<br /> �
<br /> , Friction loss
<br /> a. Enter Frictiori loss table with gprn and pipe diameter. �P��'�� _
<br /> Read fr-iction loss in feet per 100 feet from table. � ` Poirt�f
<br /> F.L ��ft/I00 Et of p{ge ��
<br /> b. betenrur�e total ptpe Iengt}t from pump to discharbe deVa�a�,D�tr��,G
<br /> pc�int. Add S pezcent to pfpe length for fitang p
<br /> loss,pr u52 A fit�n�1b3S ch3rt. Equivalent pipe
<br /> lengt}, .. ]-2S dmes pipe les►gth= F-lab
<br /> ____�Q_x 1.ZS� 88 {eet
<br /> c. C�lcvlate total friction losa by multiplying , � 1���'p�,,,�i'oo n d,3,��'c.
<br /> friction loss in ft/100 ft by eqvivalent pfpe length. 18 0.69 0.?0 �
<br /> Tocal frictiort loss= 7. `// x��+I00= 2 feet IZ 0.96' '' 0.28
<br /> 4. Total head required is ihe sum of elevation difference, � ta 1.28 o.�g �
<br /> specia; he3d reqt:irements,and totat friC�on loss. i6 1.63 O,aB I
<br /> 18 Z.43 0.60 ,
<br /> � +��� 20 2�7 U.73 ; o.t 1
<br /> s t 2 2S 3.73 i,�l ; 9,Ib
<br /> (1) {2) (3c? 3a 5.23 1.53 � fl.Z3
<br /> 3S 7.9p 2.06 � 0 30
<br /> 40 31.Q7 2.b4 0.39
<br /> TO�'AL HEAD �feet �S Is.73 3.28 o_ax
<br /> �Sp . • 9.99 j o.SB
<br /> 4,�4 � �,70
<br /> G Pumg selec*3on . 60 �.60 o_a2
<br /> �. p pump m�.Lst be selected to deliver at least
<br /> �--- ��7 gpm (Step A) with at least ��feet of total head (Step B).
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