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vrr�,rp S ECTTON PROCEDURE
<br /> � ENO KRi0RAT10N Oi � rfFFONATED LATERAL
<br /> A. Jebermint pump capaclty: °'�`••,
<br /> Gravity Distribution '�"' T
<br /> 1. Minimum suggesbed is 600 gallons per hour(10 gpm)to stay ahead of : • .,o..�.,..f..K,.�..-
<br /> �..�,..,.�.. '�"�.�,..".;�....,..
<br /> waber use rate. '"
<br /> 2, Maximum suggested for delivery to a drop box of a home system is 2,700 . �""""'°""''"""""'4
<br /> . w�.cn. r.., r..
<br /> gallons per hour(45 gpm)to prevent build-up of pressure in drop box. ,:�,;.,w� -� � �_'�•�«�
<br /> ., �.�.�..
<br /> /vt�Mw lw�M�1
<br /> • Clw�NM��r Mnw d Iww�
<br /> Pnuure Dladbudon
<br /> 3.i. Select number of perforated later iS a���� h�y���
<br /> b. Select perforation spacing• � _feet ����"�-
<br /> c. Subtra�t 2 h.from the rocic layer les�gth.
<br /> ��-2 k.•,�feet
<br /> d. Determ�ne che number of=pa�betw�rforations.
<br /> �n n ft.+ ft.s � � spues Requued Perfont�on D�scha+ge
<br /> ��Q.' /7 spac�es+� � perforations/latual u+��►.pa Q,,,+�c�(gp��
<br /> � ' Muldply perforations per lateral by numt r f latera,Ls to D He�e %��"��'" �i '�'�"'
<br /> t total�umber of perforations.� X � :�perforations. cr��>
<br /> g• � x�,.,_.�SP� 1.Oa 0.56 0.74
<br /> SELECTED PUMP CAPACTTY�,0 8Pm " Z.Ob 0.80 1.04
<br /> �.�y�����heui nquiremenb; a. Use for single family homes
<br /> 1. '; Elevation difference betH'een pump and point of discharge. b. Use for all other appl�cations
<br /> �_feet
<br /> ?�, ,� If pumping to a pressure distribudon system,five feet for pressure
<br /> . requind�t nunifold if grav�ry s cem,zero.
<br /> s Eeet
<br /> 3. Friction bas p;p�i,Q,g�,
<br /> a. Enter friction loss table with gpm and pipe diameter. � - �
<br /> Read friction loss in feet per 100 feet from table. Point of Dischu�
<br /> F.L,• Z-C y fG/100 ft of pipe
<br />. b. Determine total pipe length from pump to discharge ������+��
<br /> poin� Add 25 percent to pipe length for fitdng Pump
<br /> lo�,s,or use a fitting loss chart. Equivalent pipe
<br /> length•1.T5 times pipe length� F-tsb
<br /> � 3.S_x 1.25=�`L f�� 1.5 inch 2.0 inch 3.0 inch
<br /> c, Calculate totat friction loss by multiplying gpm ���°^'°"Par10°n°��'�`
<br /> friction loss in ft/100 ft by equivalent pipe length. to 0.69 0.20
<br /> � +100= � feet 12 0.96 0.28
<br /> Total friction loss=��_X___�.� - la t.28 0.38
<br /> 4. Total head required is the sum of elevation difference, 16 1.63 O.aB
<br /> special head requirements,and total fricdon loss. lg 2.03 o.bo
<br /> c 20 2.47 0.73 0.11
<br /> �� + ,J^ +�_ �s:. -�. � 3.73 1.11 0.16
<br /> �---�- �Z� �3d 30 5.23 1.35 0.23
<br /> 35 7.90 2.06 0.30
<br /> 40 11.07 2.64 0.39
<br /> ?O'I'AL HEAD .__,_feet a5 14.73 3.28 0.48
<br /> Sp 3.99 0.58
<br /> SS 4.76 0.70
<br /> C. Pump selection :..: bo s.bo o.s2
<br /> � ��;���.� � =-
<br /> �, l. A pump,must be selected to deliver at 1�east
<br /> �gpm (Step A)_with at least ��feet oE tot� head (Step B).
<br /> ��. . �.
<br /> :ll ��
<br /> , � . ....���..� . 'T
<br /> i� �vS����.k
<br /> � 1 _ .,. . ... . . . .�.i� . ..:A�.
<br /> . .i{'�. . .�.� .....,� ,.�'.� ,. :.. ��.. .1j...C, . �[�t.' .. '
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