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r�rvras�nwam�arsut� ' <br /> � Pump Selection Design �- - <br /> Minnesota Pollution Worksheet � �rt � <br /> Control A enc ��'`�.�'' <br /> 1. PUMP CAPACITY <br /> 1. Pumping to Gravity Distribution <br /> A. Minimum discharge is 10 GPM(15 GPM recommended) �GPM <br /> B. Maximum dixharge is 45 GPM <br /> 2. Pressure Distribution <br /> �Individual SSiS 0 Cotiection System <br /> Required Flow Rate (Line 11 of Pressure Distribution or Line 10 of Non-Level) 3 6.Q GPM <br /> C. Distribution to: ❑Soil Treatment Unit ❑Media Filter ❑ATU ❑Other <br /> 2. HEAD REQUIREMENTS <br /> 1� i veaunent system <br /> 3. Elevation Difference ft &point af dischargc <br /> `.�; <br /> between pump and point of discharge: <br /> ���`.�--''._ <br /> s.re�'+��'-f' <br /> NOTE:IF system is an individual subsurface sewoge treatment �ec Pc� �'`"�� E��;•'� <br /> system,complete steps 4-9. If rystem is a Col(ection System, m a�n�� <br /> skip steps 4,5,7 and 8 and go to Step f0. �� <br /> � <br /> ----------------------------- -------------� <br /> 4. Distribution Head Loss: �5�ft <br /> 5. Additional Head Loss: �ft(due to special equipment,etc.) <br /> Distribution Head Loss Fnctwn Loss�n Plast�c P�pe per 100 <br /> Gravity Distribution = Oft C=130 <br /> Pressure Distribution based on Minimum Average Head Nominal Pipe Diameter <br /> Value on Pressure Distribution Worksheet: F oiw Rate 1 1'/a 1�'z 2 3 <br /> GPM <br /> Minimum Avera e Head Distribution Head Loss �p 9.11 3.Q8 1.27 0.31 <br /> 1 ft 5ft --- <br /> 2ft 6ft 12 1277 4.31 1.78 0.44 --- <br /> 5ft 1 oft 14 16.99 5.74 2.36 0.58 --- <br /> 16 -- 7.35 3.03 0.75 0.10 <br /> 6. A.Suppty Pipe Diameter: 2,QQ in �g ___ 9.14 3.76 0.93 0.13 <br /> ZO --- 11.11 4.58 1.13 0.16 <br /> B. 5upply Pipe Length: 4rJ ft 2g __ 16.79 6.92 1.71 0.24 <br /> 7. Based on Friction Loss in Plastic Pipe per 100R from Tabte I: 30 --- -- 9.69 2.39 0.33 <br /> 35 --- --- 12.90 3.18 0.44 <br /> Friction loss= 3,32 ft per 100ft of pipe 40 ___ -- 16.52 4.07 0.57 <br /> g, Determine Equivalent Pipe Length from pump discharge to soit dispersal 45 �- '-- �•07 0.70 <br /> area discharge point. Estimate by adding 25%to supply pipe length for 50 -'- -- --- 6.16 0.86 <br /> fitting loss. Supp(y Pipe Length(5.8) X 1.25=Equivalent Pipe Length 55 --- --- --- 7.35 1.02 <br /> 60 --- -- --- 8.63 1,20 <br /> 45 ft X 1.25 = 5{�.2rj ft 65 --- --- --- 10.01 1.39 <br /> 70 --- --- --- 11.48 1.60 <br /> 9. Calculate Supply Friction Loss by multiptying Friction Loss Per f00ft (Line 6)by the Equivalent Pipe Length (Line 7)and divide by 100. <br /> Supply Friction Loss= <br /> 3.32 ft Per tooft x 56.25 ft = �oo = 1.9 ft <br />