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Pump Selection Design Worksheet 1. PUMP CAPACITY - - -'/***" 1. Pumping to Gravity Distribution A. Minimum discharge is 10 GPM(15 GPM recommended) GPM B. Maximum discharge is 45 GPM. 2. Pressure Distribution-See Pressure Distribution Worksheet Required Flow Rate (Line 20 of Pressure Distribution Worksheet) 36 GPM 2. HEAD REQUIREMENTS Soil treatment system 8 point of discharge ----- - � � 3. Elevation Difference 19 ft 1 between pump and point of discharge: nletpme m } Elevation difference Table ,.,.._:.,...__.,t; , t . Friction Loss in Plastic Pipe per 100ft 4, Distribution Head Loss: 5 ft Distribution Head Loss Nominal Pipe Diameter Gravity Distribution=Oft Flow Rate 1 134 1 Yx 2 3 (GPM) Additional Head Loss: ft Pressure Distribution based on Minimum Average Head (due to special equipment,etc.) Value on Pressure Distribution Worksheet: 10 5.51 1.45 0.69 0.20 - Friction Loss 1 ft = 5ft 12 7.72 2.03 0.96 0.28 - 5. Supply Pipe Diameter: 2.00 Inches 2ft = 6ft 14 10.27 2.70 1.28 0.38 - 6. Based on Friction Loss in Plastic Pipe per 100ft from Table I: 5ft = 10ft 16 13.14 3.46 1.63 0.48 - Friction Loss= 2.55 ft per 100ft of pipe 18 - 4.30 2.03 0.60 - 20 - 5.23 2.47 0.73 0.11 7_ Determine Equivalent Pipe Length from pump discharge to soil dispersal area discharge point. Estimate by adding 25%to supply pipe length for fitting loss. 25 - 7.90 3.73 1.11 0.16 Supply Pipe Length X 1.25=Equivalent Pipe Length 30 - 11.07 5.23 1.55 0.23 Supply Pipe Length: 110 ft X 1.25 = 137.5 ft 35 - 14.73 6.96 2.06 0.30 8. Calculate Supply Friction Loss by multiplying Friction Loss Per 100ft (Line 6)by the 40 8.91 2.64 0.39 Equivalent Pipe Length (Line 7)and divide by 100. 45 - - 11.07 3.28 0.48 Supply Friction Loss= 2.5503341 ft per 100ft X 137.5 ft + 100 _ 3.51 ft 50 - 13.46 3.99 0.58 10. Total Head requirement is the sum of the Elevation Difference (Line 3),the Distribution Head 55 4.76 0.70 Loss(Line 4),and the Supply Friction Loss(Line 8) 60 5.60 0.82 19 ft + 5 ft + 4 ft 65 - - - 6.48 0.95 70 - - 7.44 1.09 Total Head Required: 28 ft 3. PUMP SELECTION A pump must be selected to deliver at least 36 GPM(Line 1 or Line 2)with at least 28 feet of total head. I hereby certify that I have completed this work in accordance with all applicable ordinances,rules and laws. Joseph J Olson ---' 810 November 29,2008 (Designer) (Signature) (License#) (Date)