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. . <br /> � � P�JMP SELECTIOi�T�P�tOCED�JRE <br /> 1. Determine pump capacity: <br /> ,,.�.�A. Gravity distribution <br /> ' 1. Minimum rec}uired dischar8e is 10 gpm . <br /> 2. Maxnnum suggested�discharge is`�5 SPm. For other <br /> establishme�ts at least 10�0:greate�than the water supply rate, <br /> but no faster than the rate at which effluent will flow out of the <br /> distti'bution device. . <br /> �B. Pressure tlistribution ; <br /> See pressure distrib�tion work sheet <br /> From A or B:Selected'pump capacity:�_gp���'k• <br /> 2. Determine pump head requirements: <br /> A.Elevation difference between pump and point of discharge? . �� <br /> 13 feet `�S� <br /> B.Special head requirement?fSee Figure at right-Specinl Head Requirements) . tatd <br /> feet 2A.elevatlon <br /> iniet �erxe <br /> � <br /> C.Calculate Friction loss _______ __ _ <br /> 1. Select pipe diameter Z.t� in -------•---•--- ---------- ----�y� <br /> 2, Enter Figure E-9 with gpm(lA or B)and pipe diameter(Cl). <br /> y Read friction loss in feet per 100 feet from Figure E-9 Special `Head,Requirements <br /> Friction Loss= 3•Zt� ft/�100ft of pipe , Grayity Distribution d ft <br /> 3. Determine total p�pe length from pump discharge to soil treatment <br /> Pressure Distribution 5 � <br /> discharge point.Fstirnate by add�ng 25 percent to pipe length for � <br /> fitting loss.Total pipe length times 1.25=equivalent pipe length .E-9:F�ction loas in.Plastic Pipe <br /> ��. feet x 1.25=�feet � - Per i00 feet <br /> 4.Calrulate total friction loss by multiplying friction loss(C2) � nomind <br /> in ft/100 ft,by.the equivale�t pipe length(C3)and divide by 1�. p�p�dicnneter <br /> - ,a`� ft/100ft x `d td +100= 3 ft �Om� 1.�'- 2" 3" <br /> D. Total head required is the sum of elevation difference(A),special � 2•47� 0.73 0.11 <br /> head requirements.(B)�and total#riction loss(C4) 2� 3.73 1.11 O.16 <br /> 13 ft+ ft+ 3 ft= . 30 5.23 1.55 0.23 <br /> 35 6.96 2.06 0.30 <br /> Total head: /�o feet � � 40 8.9� 2,ba o.39 <br /> � 45 11.07 3.28 0.48 <br /> 3. Pu�p selection �o �3.� 3.� o.ss <br /> ,M�. � aab oao <br /> p,pump must be selected to deliver at ieast�1��„rn bp 5.60 0.82 <br /> (lA or B)with at least,�,��feet of total head(2D) �5 6.48 0.95 <br /> 70 � 7.44 1.09 <br /> I hereby certify t I hav ompleted.this wark in accordance with applicable ordinances, .rules and laws• <br /> ;',�. c � � �-�-�5 <br /> . (signaiure) ��7 ._(license#) (date) <br />