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, PUMP SELECTION PROCEDURE <br /> A/l boxed rsctar►gles must be e�rtered,Nie rest will be calcu/eted. <br /> 1. Detertnine pump capactty: <br /> a �m►�►o�aib� <br /> 1.Minimum required�sdtarge is 10 gpm <br /> 2.Maximum suggested�ischarge is 45 gpm <br /> For other estaMishments at least 10%greater than the water <br /> supply rate,but no fa�er than ihe r�e at which eftluent will flow <br /> out of the�sttibution device. <br /> B. Prsssure Dbfributlon-see pressure design wo�Csheet &prream,enr h�err, <br /> 9e <br /> ��t 1 <br /> SelecEed Pump Capadty: 46.6 gpm e��a�ce <br /> inlet 2A,elevatlon <br /> 2. Determine head requirements: p�� difference <br /> A. ElevaGon difference beriveen pump and point of discharge. <br /> ' -------- -- -' <br /> 12 fe� _.....----•-•-••........... ....... <br /> B. Special head reQuirement?(See Figure-Special Head RequJremer►ts) <br /> �� cial Head Re uirernents <br /> Gravity Distributlon Oft <br /> C. F�Ctirn loss P�essu�Distribution 5ft <br /> 1. Se�Ct pipe c�am�er ��in(insulate enGre line) <br /> 2. Enter Figure E-9 with gpm(1A or B)and pipe diam�er(C1) ��� c <br /> Read frictlan loss in fe� 100 feet from Figure E-9 ' � <br /> Fric�ion bss= 3.3 ft1100 ft of pipe P�100 teel <br /> r�o�r�ind <br /> 3.Determine t�al pipe.length from pump discharge to soil system discharge point �� 1.5'�d��3' <br /> Estimate by adding 25 percent to pipe length for fitting loss. <br /> E uiv�ent ' length times 1.25=tot�pipe length � 2.47 0.73 0.11 <br /> 45 ftx1.25= 56.25 feet "'"�'��`':�3'��?���:.�"�: <br /> 30 5.23 1,55 0.23 <br /> 4.Calculate total fri�ion loss by multiplying fricGon loss(C2) 35 6.9b 2.06 0.30 <br /> by the equiv�nt pipe length(C3)and divide by 100. �. .: °�' >`���`���`�� .� <br /> FL= 3.3 fl/100ft X 5�25 ft I 100= 1,g � � 11_07 3.28 0.48 <br /> 50 13.46 3.99 0.58 <br /> .�`'t�;.�:�`�'�"€�^f:�s�:���'a'�'s:��`AL7r�';�;� <br /> D. Totai head requirement is U►e sum oF elevatiai di�erence(A),special � 5.60 0.82 <br /> head requirements(B),and totai friction loss(C4). 65 6.48 0.95 <br /> 12 ft + 5 ft + 1.9 ft <br /> 70 7.44 1.09 <br /> Total Head: 18.9 feet <br /> 3. Pump Seleetion <br /> 1.A pump must be selected to de�iver at least 46 6 gpm(1A or B) <br /> with ffi least 18.9 feet�t�tal head 20. <br /> I herebyr certify that I have oompfeted this wak in a000rdance with all applicabie ordinances,rules and laws. <br /> (signature) l�?/� (license� � (date) <br />