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� . �� �. � � � � PUMP SELECTI03�t�PROC�DTJRE� � . . <br /> .. �' . . <br /> � .1. Determzne pump capacity: ���`� '�� <br /> ,,,�,A. Gra�ity distribution � � � � - � <br /> . ' 1: Min'imum rec}uired discharge is 10 gpm . - <br /> 2. Maximum suggested'dischazge is 45 g�m. For other <br /> .. establishtne.n#s at.lea's:Y 10°�o:'grea�er thari the water supply rate, � <br /> � but no faster than the ra#e at whi.ch effluent will flow out of the � <br /> .. , ; <br /> � distribudon device. <br /> �B. Pressure distributiori � - <br /> See pressure distrib,.ution work sheet <br /> From'A or:$:'Selected'pump capacity: �t� gpm � � � <br /> 2. Determine pum�p head:requirements: � �, . � <br /> A. Elevatio�i differ.ence between pump a�d point of di.scharge? � � . sou treatment syster <br /> � � ��, feet &p (nt f disch�argE <br /> > <br /> B.Special head requirei'nent?(See Figure at righf-Special Head Req�i.reznents) .: total pipe <br /> . . . 18� . . <br /> �_feet . � . � 2A.elevation <br /> Inlet difference <br /> . C. Calculate Friction loss �� P�PQ . � � <br /> 1. Sele�t pipe diameter' �, in . . """" ------------------•------- ---..-'7 1 <br /> 2. Enter Figure E-9 with gpni(lA or B)�and pipe diameter(Cl). <br /> � Read friction loss,in feet�per 100 feet from Figure E-9 � � � S.pe�f�! �Head.`Requirements <br /> Friction'Loss=- .a5� ft/�100ft of pipe , . Grayity Distribution 0 ft <br /> � Pressure Distrib.ution 5 ft <br /> 3. Deterinine total pxpe length from'pump discharge to soil treatment:. .: . . <br /> discharge point.Estimate b�adding 25 percent to pipe length for �� • • � � <br /> fitting loss.Total pipe length times 1.25=equivalent pipe length ,E-9:Frictlon Loss in:Plcst(c Pipe <br /> �:S� feet z 1.25�= v f feet � � - Per•100 feet <br /> 4. Cal`culate total friction loss:b.y. multiplying friction loss(C2) �� riomincl � <br /> in ft/100 ft,by.:the equivalen#:pipe length(C3)and divide:by 100. � . pipe dtameter <br /> _ ,�E ft/100ftx `��1 +100= ) ft � flomra#e 1.5" � 2" 3" <br /> ' D. Total head required is.the sum of elevation difference(A�,special�' � � � � 2:47• �0.73 � 0.11� <br /> � head requirements.(B),and total friction loss(C4) 25 � � 3.73 1.11 �0.16 <br /> � � .ft+ .y_ft+�_ft= � . 30 . ...5.23 1.55 0.23 <br /> Total head: I�S� ��feet ��. 6.96. , 2.ob o.so <br /> '� . 40 � . 8,91 .2.64 0,39 <br /> 3. Pump selection . � � " � ' a���� � t t.o7 � s.2s o.as <br /> 50 ' 13.46 3.99 0.58 <br /> . 55 � .. 4J6' OJO <br /> A pump must be selected to deliver at least��n1 - � bp � 5:60 0.82 <br /> (lA or B)with at least J� feet of total head (2D) 65 6.48' �0.95 <br /> 70 • � 7.44 �� 1.09 <br /> ' I hereby certify that.I ave completed.this wo�k in accorclance vyith applicable ordinances, :rules and laws. � <br /> � �- -� .�'� �....,........., '.�c'1 li # °1-o��aTt7S� date <br /> ,�" C/��M (si.gnaiure) ' .( .cense ) ( ) <br />