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. , 1 <br /> �. ����.�.or�..�r..�....:..�. ...�...�.._... r-�,,,-�--.� <br /> A Gt�wity Dishibutlon p�"�"" " <br /> 1.Ma�imum requirad�Scharge is 10 gpm <br /> 2.Ma�rimum suggested discharge is 45 gpm <br /> For other esta�ments ffi i�st 1096 great�than the water <br /> suppiy ra�,but no fas�1tt�Ihe rete at which eflluent w�l flow <br /> out of the distribu�on device. <br /> B. Pressure Di�ribution-see pressure desiyn worksheet son treatrt,e�,►sysreR, <br /> 8�poin harge <br /> } i� <br /> Selected Pump Capacit�►: �9Pm 1e t���r� <br /> �9 <br /> 2A.elevotion <br /> Inlet ° ; difference <br /> 2. Determtne Total Dynamic Head(TOH) �ce ��� � <br /> A. Elevation diif�ence between pump amd point of discharge. �� � ' <br /> , ___._._. <br /> 7.5 feet •� � --------------------------- ------ <br /> a <br /> B. Spe�head requirement?(See F'rgwe-Special Head ReQuirements) <br /> ��feet Special He�ad Re u�eme�tts <br /> �ravity Distribu�on Oft <br /> C. Frictia�bss in suPP�Y P�Pe Pressure Distribubon 5ft <br /> 1. Seted pipe di�rieter �in <br /> 2. En�t Figu�e E-9 wiU�9pm(1A or B)and pipe diameter(C1} <br /> Read iriction loss in feet r 100 feet from Figure E-9 E-9 Frictlon Loss io Plastic Pipe <br /> Fridan bss= O�ff/100 ft of pipe 100 ft <br /> nortunad <br /> 3.Determine total piPe len9th from P�mP�harge to sal sys�em discharge pant Fbw Ra�e ' dia�rieter <br /> Estimate by adding 25 percent bu pipe length for fric6on bss in fittings. 1.5' 20' 3' <br /> ' len th times 1.25=equiv�t pipe lengih 20 247 0.73 0.11 <br /> 15 ft x 1.25= 18.75 feet 25 3.73 1.11 0.16 <br /> � 5.23 1.55 0.23 <br /> 4.Cak:ulate�ohal iridion loss by mult�lyirx}friction bss(C2) 35 6.96 2.06 0.3 <br /> by the equ'rvalent pipe length(C3)a�►d�ivi�by 100. 40 8.91 2.64 0.39 <br /> Friciion Loss= 0 ftM OOft X 18.75 ft / 100= 0.0 feet 45 11.07 3.28 0.48 <br /> 50 13.46 3.99 0.58 <br /> D. Totai head r�equ�ement is the sum of�evatia�diff�(A),spea� 55 4.76 0.7 <br /> head requirem�is(B),and total friction bss(C4). 60 5.6 0.82 <br /> 7.5 ft + 0 ft + 0.0 ft 65 6.48 0.�'i <br /> 70 7.44 1.09 <br /> Total Nead: 7.5 feet <br /> 3. Pump Seladion <br /> 1.A pump must be seleded to deliv�at least 35 gpm(1A or B) <br /> witl�at le�ast 7.5 �eet of�head 2D. <br /> I hereby cefify ihat I have oomple�ed ihis work in accadanoe witli�i e�pi�e adinarroes,n�es and iawws. <br /> (si9nature) /�''I Z( (tioense� �z 5'�'�(d�e) <br /> Page 1 of 1 <br /> ____ _ - _ <br />