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. : , ; � ' I'UMfl' SELECTION I'ItOCEDYJRE <br /> �. Deterinine pump cap�city: '�'R_��1��� �� <br /> A. Gxavity distribution <br /> 1. Minimum required discharge is 10 gpm <br /> 2. Maximum suggested discharge is 45 gpm. For other <br /> establishments at least 10%greater than the water supply rate, <br /> but no faster than the rate at which effluent will flow out of the <br /> distribution device. <br /> I3. �.'res�ure distril�ution <br /> See pressure distribution work sheet <br /> From A or � Selected purrb�� capacity: a� gpm <br /> 2. I�eterrr�ane pu�np heac� req�.ii�-ements: ��•� <br /> A. Elevation difference between pump and point of dischar e? �����' ~��� <br /> �_feet g soil treatment system <br /> &point of discharge <br /> q;oa�Da�o;:: <br /> B. Special head rec�uirement? (See Figure at rigytt - Special Head Requirements) totol pipe <br /> --'�' feet length <br /> inlet �� 2A.elevation <br /> C. Calculate Friction loss pipe :���, difference <br /> �� ------- ': <br /> 1. Select pipe diameter �, � -- -' <br /> --------------�----._. .. <br /> ,: <br /> <:. . :�; ����.4� <br /> 2. Enter Figure E-9 with gpm (1A or B) and pipe diameter(C1). '���°-��•� -�•��-��-<_ <br /> Read friction loss u� feet per 100 feet from Figure E-9 Special Head Requirements <br /> Friction Loss = !i ft/100ft of pipe Gravity Distribution 0 ft <br /> 3. DetenYune total pipe length h-oin pump discharge to soil treatment Pressure Distribution 5 ft <br /> discharge point. Estirnate by adding 25 percent to pipe length for <br /> fitiing loss. Total pipe length times 1.25 = equivalent pipe ler�gth <br /> �g feet x 125 = �� 7> feet E-9: Friction Loss in Plastic Pipe <br /> 4. Calculate total friction loss by multiplying friction loss (C2) Per l0o feet <br /> in ft/100 ft by the equivalent pipe length (C3) and divide b 100. nominal <br /> Y pipe diameter <br /> _ . � 1 ft/100ft x ,�,.��;�` -10p =�_ft flow rate 1.5" 2" 3�� <br /> pm <br /> lD. Total head required is the sum of elevation difference (A),special 20 2.47 OJ3 0.11 <br /> head requirements (B), and total friction loss (C4) 25 3.73 1.11 0.16 <br /> � ft+ '`" ft+ � ft= 30 5.23 1.55 0.23 <br /> �'�$�� ����: "j fe�� 35 6.96 2.06 0.30 <br /> 40 8•91 2.64 0.39 <br /> �. ��8�� ��Y�CtlOfl� 45 11.07 3.28 0.48 <br /> 50 13.46 3.99 0.58 <br /> A pump must be selected to deliver at least ��.��p�m 55 4J6 OJO <br /> (lA or B) with at]east 60 5.60 0.82 <br /> �_feet of total head (2D) 65 <br /> 6.48 0.95 <br /> �� 7.44 1.09 <br /> I hereby certify that I have completed this work in accordance with applicable ordinances, rules and laws. <br /> ,���R�_ � �-; .�� <br /> (signature) �`a1 � (license#) �G� '"�;�..-� <br /> -� (date) <br />