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, 07,/07/2908 09:24 9528733112 PAGE 11/14 <br /> PUMP SELECTION PROCEDURE . <br /> Alf boxed rectangles must be entered,the resf will be calculafed. <br /> 1. Determi�e pump capac�ty: <br /> A. Gravity Distribudoa <br /> 1.Minimum required discharge Is 10 gpm <br /> 2,Maximum suggested discharge is 45 gpm <br /> Far other establishments al lea.at 1096 greater Ihan the wat�r � <br /> supply rate,buk no faster lhan the rate at whid�effluenl will flow <br /> out of 1he distribulion device. <br /> B. Pressure Disbribudon-s�e pressure design worksheet �ph n�har� <br /> 9e <br /> Selected Pump CapacRy: 35.3 gpm Atal pae <br /> � 2A�slevafbn <br /> 2. D�termine head requlrements: ci� a"���"�Q <br /> .....,,, .. . <br /> A. Elevadon difference beM�en pump and point cf discharge. ................. . <br /> 10 � feel ..,.--•-�-•................ ......, <br /> B, Speaal he�raquirement?(See F(gur�-Specie!Head Requiremenfs) <br /> �feet S ial Head ulrements <br /> Gravfty DlstribuGon QR <br /> C. Friaion loss Pressurs Dist�ibulion 5ft <br /> 1. 5eleci pipe diameter �in <br /> 2. E�er Figur�e E�with gpm(1A or B)and pipe diameter(C 1) , � �,�� ���� <br /> Read F�idian fcss In Feet er 100 feet from Figure E-9 ' ���,� <br /> FdcUon loss= 2,06 ffl 100 R of pipe ��� <br /> ob�darr�eier <br /> 3.Detertnine total�pe length t�am pump discharge to soil system discharge polni. 1b'W 1t� i,5'- T S' <br /> Esiimate by adding 25 peroent to pipe length f�fiifrng loss. Zp 2,47 0,7� D.11 <br /> u�valer� ' length Umes 1,25=total pipe length <br /> 70 ft x 1.25= 87.5 feet �D 5.23 1.66 0.23 <br /> 4.Calculate tatal frlction loss by mulGpfying friction Ioss(C2) 36 6.4b 2.06 Q30 <br /> by the equivalent pipe length{C3)and divide by 100. �6 11.Q7 �.28 0,48 <br /> FL= 2.06 fU100R X 87.5 ft I 100= 1.A f� 50 13.d6 3.99 0,69 <br /> D. Total head requirement is the sum of elevalion difference(Ay,special 6Q ' 5.60 O.�I <br /> head requirements(8),and tatal fiction loss(C4). <br /> 10 it + 5 ft � 1,8 fi 66 b,48 D,95 <br /> 1 09 <br /> Total Head: 16.8 feet <br /> 3. Pump Selection <br /> 7,A pump must be selected to deliver a�t least 35.3 gpm(1A or B) <br /> wilh at least 16,8 Feet of tatal head 2D). <br /> I h rtif ai l e eted lhis wak in accordance with all applicable ordinances,rules and I <br /> • �� d" li ense# « ��'� ��ate <br /> (signature) � ( e ) ( ) <br />