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+JUN=1�-1998 �8:29P FROM: T0:9522494616 P:12�13 <br /> . � <br /> Y <br /> � <br /> � b PUMP SELECTION PROCEDURE i <br /> 1. Determine pump capacity: <br /> t�. Gravity distribution � <br /> 1. Minimum required discharge is 10 gpm ; <br /> 2. Maximum suggested discharge is 45 gpm. For other <br /> esrlblishn�ents at least 10% gre�ter than the water <br /> supply r�tc, Uut no faster than the rate at wluch effluent will flow <br /> out of the dislributio�l device. <br /> B. Pressure distribution <br /> See pressure distribiction zvork sheet . <br /> From A or B Selected pump capacity: C� gpm , <br /> 2. Deterrnine u�n head re uirements: �r � soiltreatment stem <br /> p P q � &polnt of dlschorge <br /> A. Elevation diFference between pump ai�d point of discharge? ��p ��� . <br /> �a feet totol pipe <br /> B.Special head requir�nlent? (See Fi��ui•e c�t risht- Special Head Iengt <br /> 2A.elevation <br /> RequiremetTts� inlet d;fference r Q � <br /> � f�er pipe <br /> ----... .. . <br /> C. Calcullte Friction loss � �- -�� - <br /> 1. Select pipe dianleter Z-� in '""�"��""����""�"""-�"�"'� '-��-� <br /> 2. Enter Fis�.ire E-9 with gpm (1A or B) and pipe diameter � <br /> (C1) Special Head Requirements <br /> Read friction luss in feet per 100 feet fro�n Fi�;ure E-9 Gravity Distribution <br /> Pressure Distribution -- _5 Ft <br /> Frici�on I,oss = .?�,,�G� Et/100ft of pipe - <br /> 3. Determule total pipe length from puirp discli��rde to soil treat- <br /> ment discharge point. Estimate liy adding 25 pc�rc�,nt t� pipe length E-9:Friction Loss in Plastic Pipe <br /> tor£iltin loss. Totai pipe length times 1.25 = ec�uivalt�nt pipe length per l0o teet <br /> ._�feet x 1.25 =�/,,,� feet <br /> nominol <br /> 4. Calct�late total h�iction loss by multiplying friction loss (C2) pipe diameter <br /> in ft/100 f�}�y the equiv��lent pi e Iength (C31 :;i;ci �!ivide by 100. flomrate 1.5" 2" 3" <br /> = Z,�i 7 ft/100ft x ' f� +100 = i _� ft 2p 2.47 0:73 0,t 1 <br /> D. To tal head r�quired is the sum of ele��,i t;��:� �i i i rerence (A), 25 :, . 3.73 1.11 0.i 6 <br /> speci�l head re uireinents (B), and total i�•i�tic�ii 1 ss (C4) 30 5.23 1.55 o.z3 <br /> �ft + � ft+ � ft = �/ � 6.9G 2. 0.30 <br /> 40 8.91 .64 0.39 <br /> - 45 11.07 . 0.48 <br /> Total head: � � feet 50 13.46 3.qq o.�a <br /> 55 ' 4.76 0.70 <br /> 3. PumP SelectiOn 60 5.60 0.82 <br /> A pump must be select�a to deliver at least � a__�pm '���� 6•48 0.95 <br /> (1A or 13) with �t least�feet of total i���,��.; (:'I�) 70 �.44 �.09 <br /> e y��rtify tha t I li�ve cui �pleted this work iit acc���,i,�r�. � ti�fith applicable ordinances, rules and laws. i <br /> � <br /> �..__ (signatt►n�, ������(licens�#) �� (date) <br />