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Uxrve�artv W lLFn�.� <br /> Pump Selection Desi�n � - .� _+ <br /> Minnesota Pollution Worksheet . ..,, � �.�'�:.. <br /> Control A enc �"' ✓ <br /> 1. PUMP CAPACITY <br /> 1. Pumping to Gravity Distribution <br /> A. Minimum dixharge is 10 GPM(15 GPM recommended) ��GPM <br /> B. Maximum discharge is 45 GPM <br /> 2. Pressure Distribution <br /> O i�,anaa�ssrs O ca�,sys� <br /> Required Flow Rute (Line 11 of Pressure Distribution or Line 10 of Non-Levet) 3 6.� GPM <br /> C. Distributionto: pSoitTreatmentUnit ❑MediaFilter ❑ATU ❑Other <br /> 2. HEAD REQUIREMENTS <br /> �treatment system <br /> 3, Elevation Difference �5 ft �po�nt o(discl�a�9e <br /> between pump and point of discharge: <br /> wp�`'+�m`��` <br /> NOTE:iF system is an individuot wbsurface sewnge treatment �iec� E���;•�� <br /> system,complete steps 4-9. If system is a Cottection System, m a�� <br /> skip steps 4,5, 7 ond 8 and go to Step f0. � <br /> ----------------------------- -------------• <br /> 4. bistribution Head Loss: ��ft <br /> L� <br /> 5. Additional Head Loss: �ft(due to special equipment,etc.) <br /> Distribution Head Loss nctaon Loss�n ashc pe per 1 <br /> Gravity Distribution = Oft C=130 <br /> Pressure Distribution based on Minimum Average Head ��ndl Pipe Diameter <br /> Value on Pressure Distribution Worksheet: F GPM� 1 1'/a 13"z 2 3 <br /> Minimum Avera e Head Distribution Head Loss 10 9.11 3.08 1.27 0.31 --- <br /> 1ft 5ft <br /> 2ft 6ft �2 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: 2.00 in 18 --- 9.14 3.76 0.93 0.13 <br /> B.Supply Pipe Length: (j 3 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 --- --- 8.69 2.39 0.33 <br /> 35 --- --- 12.90 3.18 0.44 <br /> Friction Loss= 3.3 2 ft per 100ft of pipe 40 --- --- 16.52 4.07 0.57 <br /> 45 --- --- --- 5.07 0.70 <br /> g, Determine Equivatent Pipe Length from pump discharge to soil dispersal 50 --- --- --- 6.16 0.86 <br /> area discharge point. Estimate by adding 25%to supply pipe length for <br /> fitting loss. Supply Pipe Length(5.B) X 1.25=Equiva(ent Pipe Length 55 --- --- --- 7.35 1.02 <br /> 60 --- --- --- 8.63 1.20 <br /> 63 ft X 7.25 = 7$,]5 ft 65 --- --- --- 10.01 1.38 <br /> 70 --- --- --- 11.48 1.60 <br /> 9. Catculate Supply Friction Loss by muttiplying Friction Coss Per t00ft (Line 6)by t e Equiva ent Pipe engt (Line 7)an divide by 100. <br /> Supply Friction Loss= <br /> 3.32 ft per 100ft x 78.75 fc r �oo = 2.6 ft <br />