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OSTP Pump Selection Design UNIVERSITY <br /> Minnesota Pollution Worksheet OF MINNESOTA ` - <br /> Control Agency ti�.�� <br /> 1. PUMP CAPACITY <br /> A. Pumping to Gravity or Pressure Distribution: 0 Gravity ®Pressure <br /> 1. If pumping to gravity enter the gallon per minute of the pump: I GPM <br /> 2. If pumping to pressure, is the pump for the treatment system or the collection system: <br /> 0 Treatment System 0 Collection System <br /> 3. If pumping to a pressurized treatment system,what part or type oi'system: <br /> 0 Soil Treatment Unit 0 Media Fitter 0 Other <br /> 4. If pumping to a pressurized distribution system: 1 29.0 GPM <br /> (Line 11 of Pressure Distribution or Line 10 of Non-Level or enter if Collection System) <br /> 2. HEAD REQUIREMENTS <br /> 3. Elevation Difference 19 ft Soil ptreatment <br /> int o dissctharge <br /> bA <br /> between pump and point of discharge: " a <br /> as <br /> NOTE:IF system is an individual subsurface sewage treatmentr ".,,, s.90,vo,oe"9 <br /> system, complete steps 4-9. If system is a Collection System, Met pipe Elevation <br /> • <br /> skip steps 4, 5, 7 and 8 and go to Step 10. tfifiernnce <br /> 1----f.1 , <br /> „. <br /> 4. Distribution Head Loss: 5 ft <br /> I <br /> 5. Additional Head Loss: ft(due to special equipment, etc.) <br /> Distribution Head Loss Friction Loss in Plastic Pipe per 100 ft <br /> Gravity Distribution = Oft (C=130) <br /> Nominal Pipe Diameter <br /> Pressure Distribution based on Minimum Average Head Flow Rate <br /> Value on Pressure Distribution Worksheet: (GPM) 1 11A11 2 3 <br /> Minimum Average Head Distribution Head Loss 10 9.11 3.08 1.27 0.31 <br /> ift 5ft <br /> 2ft 6ft 12 12.77 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. Supply Pipe Diameter: 2.0 in <br /> 18 9.14 3.76 0.93 0.13 <br /> B. Supply Pipe Length: 50 ft 20 --- 11.11 4.58 1.13 0.16 <br /> 25 --- 16.79 6.92 1.71 0.24 <br /> 7. Based on Friction Loss in Plastic Pipe per 100ft from Table I: 30 <br /> 9.69 2.39 0.33 <br /> Friction Loss= 2.23 ft per 100ft of pipe 35 -- 12.90 3.18 0.44 <br /> 40 --- --- 16.52 4.07 0.57 <br /> 8. Determine Equivalent Pipe Length from pump discharge to soil dispersal 45 5.07 0.70 <br /> area discharge point. Estimate by adding 25%to supply pipe length for <br /> fitting loss. Supply Pipe Length(5.8) X 1.25=Equivalent Pipe Length 50 -- 6.16 0.86 <br /> 55 --- --- --- 7.35 1.02 <br /> 50 ft X 1.25 = 62.5 ft 60 --- --- --- 8.63 1.20 <br /> 9. Calculate Supply Friction Loss by multiplying Friction Loss Per 100ft (Lim bl by 1 65 - 10.01 1.39 <br /> Supply Friction Loss= 70 11.48 1.60 <br /> 2.23 ft per 100ft X 62.5 ft 100 = 1.4 ft <br />