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� � � � - PUMP SELECTION��PR�C�D�JRE ` <br /> ,, ' <br /> � ��vvi"� � I�,. . <br /> �' 1. Determine pump capacity: <br /> ,,,�..,,A. Gra�ity distribution � � <br /> . ' 1. Minimum required discharge is 10 gpm . <br /> 2. Maximum suggested'dischazge is 45 g�m. Far other <br /> establishm�r�#s at.,lea'st 10°�o`greatei�ti�ari the water supply rate, <br /> but no faster than the rate at which effluent will flow out of the <br /> distribution device. . , <br /> �B. Pressure distribution � <br /> See pressure distribution work sheet <br /> ,.. . <br /> From�A or B.`Selected'pump capacity: �� gpm � <br /> 2. Determine pumg headxequirements: �. wta��t� <br /> A. Elevation difference between pump a�d point of discharge? . �t�e�#sYstem <br /> &pei��e�d�harge <br /> � feet °�a�'�' ��.n <br /> B.Special head requirement?(See Figure af right-Special Head Requireznents) . totol pipe <br /> • leng <br /> "'" feet 2A.elevaflon <br /> inlet difference <br /> . C. Calculate Friction loss � plpe � � <br /> 1. Select pipe diameter' a.o in -__` ----------------•--------- ---..�`7 � <br /> 2. Enter Figure E-9 with gpm(lA or B)�and pipe diameter(Cl). <br /> � Read friction loss,in feet per 100 feet from Figure E-9 Spe�Tal Head `Requirements <br /> FricHon'Loss=• �►> ft/�100ft of pipe , . Gravity Distribution 0 ft <br /> Pressure Distribution 5 ft <br /> 3. Determine total pipe length from`pump discharge to soil treatrnent .: . <br /> discharge poiMt.Estimate by adding 25 percent to pipe length for � � <br /> fitting loss.Total pipe length times 1.25=equivalent pipe length ;E�9:Frictlon loss in Plastic Pipe <br /> 1 S� feet x 1.25 = l�=J feet � Per�100 feet <br /> 4.CaTculate total hiction loss.by multiplying friction loss(C2) �' riominnl <br /> in ft/100 ft,by:.the equivalen#pipe length(C3)and divide:by 100. pipe.diameter <br /> _ !,I I ft�l���X 1 �) +10�= � „� ft flOW f4t@ �.�J" Ze 3n <br /> m <br /> ' D. Total head required is.the sum of elevation difference(A),special�� � � 2:47� �OJ3 0.11� <br /> head requirements.($),and total friction loss (C4) 25 � 3.73 1.11 � O.J6 <br /> � `� ft+ . ---- ft+�_ft= . 30 5.23 1.55 0.23 <br /> 35. 6.96 2.06 0.30 <br /> Total head: �' �feet �y � ao . 8.9� 2.ba o.39 <br /> 3. Purnp selection . � � ` a5 � t t.or � s.2s o.as <br /> 5f1 T3.46 3.99 0.58 <br /> ' / 55 4.76' OJO <br /> A puxnp must be selected to deliver at least�s _,,;m - bp 5.60 0.82 <br /> (lA or B)with at least T feet of total head (2D) �5 6.48 0.95 <br /> 70 • � 7.44 1.09 <br /> I hereb certify that.I.have�completed.this woxk in accardance with applicabl�ordinances, :-rules and laws. <br /> � . . <br /> --- ,� , ' � �" • <br /> � <br /> : , l; ____ (signature) 3`�.�' . (license#) "I- �a -US` (date) <br />