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PUMP SELECTION PROCEDURE <br /> All boxed rectangles must be erdered,the rest will be c�Culated. <br /> 1. Determine pump capacity: <br /> A. Gravit�r Distribution <br /> 1.Minimum required discharge is 10 gpm <br /> 2.Maximum suggested discharge is 45 gpm <br /> For other establishments at least 10°k greater than the water <br /> _ supply rate,but no faster than the rate at which efliuent will flow <br /> out of the distribution device. <br /> B. Presaure Distribut(on-see pressure design warksheet soa tream,er,t system <br /> &p dnt f horge <br /> Selected Pump Capacity: 66.6 gpm tota qpe <br /> �er,gm <br /> �t 2A.eievation <br /> 2. Determine head requirements: ,,;� ���e <br /> A. Elevation difference between pump and point of d�scharge. -:_-:_' <br /> _.... . <br /> 18 feet -•------------------------- ------ <br /> g, 5pecial head requirement't(See Figure-Specia►Head Kequiremertts) <br /> Ofeet peaal ead uirements <br /> Gravity Distn�bution Oft <br /> C. Friction loss Pressure Disfi"bution 5ft <br /> 1. Select pipe diameter �2 in <br /> 2. Enter Figure E-9 with gpm(1A or B)and pipe diameter(C1) ��iC <br /> Read friction loss in feet per 100 feet from Figure E-9 • D� <br /> Friction bss= 6.48 ft/100 ft of pipe ����t <br /> nort�ir�d <br /> 3.Detertnine total pipe length from pump discharge to soil system discharge point. Aowtate i.5'- �' <br /> Estimate by adding 25 percent to pipe length for fit�' g bss. � <br /> Equivalent pipe length times 1.25=total pipe length � 2d7 0.73 0.11 <br /> 205 ftx 1.25= 256.25 feet � �-''r< ��� �3.'�3_ ��1.1] �::b.,1+�:� <br /> 3a 5.23 ].55 0.23 <br /> 4.Calculate total friction loss by multiplying fiction loss(C2) �'` a•� 2� Q� <br /> by the equivalent pipe length(C3)and divide by 100. � `=a �- �Qt -._::�b4 �t,�;a39=: <br /> FL= 6.48 ft/100ft X 256.25 ft ! 100= 16.6 feet �``' 11A7 3.28 QA8 <br /> 5[t 13.A6 3.44 Q56 <br /> D. Total head requirement is the sum of elevation difference(A),spedal ���'� { �� � _����"����' <br /> head requirements(B),and total friction bss(C4). � 5.60 0.8�2 <br /> 18 ft + 5 ft + 16.6 ft � 6.A8 0.45 <br /> 70 7.4d 1.09 <br /> Total Head: 39.6 feet <br /> 3. Pump Selection <br /> 1.A pump must be selected to deliver at least 66.6 gpm(1A or B) <br /> with at least 39.6 feet of total head(2D). <br /> I hereby certify that I have completed this work in accordance with all applicabl�ordinances,rules and laws. <br /> � (signature) 3Y 3� (ficense#) �'4`f��3 (date) <br />