Laserfiche WebLink
PUMP SELECTION PROCEDURE <br /> All boxed rectangles must be entered,the rest will be calculated. <br /> 1. Determine pump capacity: <br /> A. Gravity Distribution <br /> 1.Minimum required discharge is 10 gpm <br /> 2.Maximum suggested discharge is 45 gpm <br /> For other establishments at least 10%greater than the water <br /> supply rate,but no faster than the rate at which effluent will flow <br /> out of the distribution device. <br /> B. Pressure Distribution-see pressure design worksheet soil treatment system <br /> &point of discharge <br /> Selected Pump Capacity: 28.6 gpm totallengpipe <br /> inlet 2A.elevation <br /> difference <br /> t <br /> r. <br /> A. Determine <br /> Elevatiddifferencebetween pump and point of discharge.ad requirements: pipe ' <br /> 20 feet <br /> B. Special head requirement?(See Figure-Special Head Requirements) <br /> 5 feet Special Head Requirements <br /> Gravity Distribution Oft <br /> C. Friction loss Pressure Distribution 5ft <br /> 1. Select pipe diameter in <br /> 2. Enter Figure E-9 with gpm(1A or B)and pipe diameter(Cl) <br /> Read friction loss in feet r 100 feet from Figure E-9 E-9 Fricion loss in Plastic Pipe <br /> Friction loss= 1.55 ft/100 ft of pipe Per 100 feet <br /> nominal <br /> pipe dameter <br /> 3.Determine total pipe length from pump discharge to soil system discharge point. flower 1. ' 2' 3' <br /> Estimate by adding 25 percent to pipe length for fitting loss. CIPM <br /> Equivalent pi22 length times 1.25=total pipe length 20 2.47 0.73 0.11 <br /> 150 Ift x 1.25= 187.5 feet 25 373 '.`.-`1 l 1 0:16 <br /> 30 5.23 1.55 0.23 <br /> 4.Calculate total friction loss by multiplying friction loss(C2) 35 6.96 2.06 0.30 <br /> by the equivalent pipe length(C3)and divide by 100. 40 8 41 k4 '.:._i:0 39- <br /> FL= <br /> 9FL= 1.55 ft/100ft X 187.5 ft I 100= 2.9 feet 45 11.07 3.28 0.48 <br /> 50 13.46 3.99 0.58 <br /> D. Total head requirement is the sum of elevation difference(A),special 55 4 76 - 'W. •i <br /> head requirements(B),and total friction loss(C4). 60 5.60 0.82 <br /> 20 ft + 5 ft + 2.9 ft 65 6.48 0.95 <br /> 70 7.44 1.09 <br /> Total Head: 27.9 feet <br /> 3. Pump Selection <br /> 1.A pump must be selected to deliver at least 28.6 gpm(1A or B) <br /> with at least 27.9 feet of total head(2D). <br /> 1 hereby th have plet s work in accordance with all applicable ordinances,rules and laws. <br /> nature) ��Q (license#) 9 (date) <br />