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05/21/01 Page 1 <br /> DESIGN PARAMETERS <br /> Flow Estimated GPD = 750 gallons <br /> Septic Tank Volume = 2250 gallons <br /> Depth to Restricting Layer= >62 inches <br /> Percolation rate = 20 mpi <br /> Soil Sizing Factor = 1.67 sq.ft./gpd <br /> Land slope = 0 % <br /> DRAINFIELD REQUIREMENTS <br /> Infiltrator Model = Standard Sidewinder Chamber <br /> Equivalent Rock Depth = 6 inches <br /> Reduction Factor= 0 % <br /> Trench Bottom Area = 1253 square feet <br /> Lineal Feet = 418 feet <br /> Number of Trenches = 5 each <br /> Length of Trenches = 84 feet <br /> Number of Infiltrator Sections = 13 per trench <br /> PUMP CALCULATIONS <br /> Gallons Per Minute Requirement <br /> Minimum In-Line Pressure/Ft. = 1 feet <br /> Orifice Diameter= 0.187 inches <br /> Spacing of Perfs in Laterals = 3.5 feet <br /> Diameter of Manifold = 2 inches <br /> Length of Manifold = 24 feet <br /> Length of Supply Line = 185 feet <br /> Diameter of Supply Line = 2.0 Inches <br /> Minimum Gallons per Minute = 50 gpm <br /> Head Loss Summations <br /> Supply Line Friction Loss = 4.0 feet <br /> Manifold Head Loss = 0.1 feet <br /> Lateral Network = 0.4 feet <br /> Discharge Assembly = 5.0 feet <br /> Lift to Manifold = 9.8 feet <br /> Total Head Losses = 19 feet <br /> Dose Volumes <br /> Volume of Manifold = 4 gallons <br /> Volume of Laterals = 71.0 gallons <br /> Minimum Dose Volume = 31.3 gallons <br /> Volume of Supply Line= 32.2 gallons <br /> Total Dose Volume = 139 gallons <br />