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3. TRENCH CONFIGURATION: REGISTERED PRODUCTS-CHAMBERS AND EZFLOW <br /> p, Initial required Sidewall gottom Area Bottom Area Design <br /> trench bottom area Absorption trench <br /> Z Reduction Multiplier <br /> (ft ): (from 1.D) (inches) bottom area <br /> 6 to 11 1 269 <br /> 12 to 17 20% 0.8 216 <br /> 269 <br /> 18 to 23 34% 0.66 178 <br /> 24 40% 0.6 162 <br /> B. Registered Product: <br /> C. Select Sidewall Height: 12 inches = 1.0 ft <br /> D. Design Bottom Area(3.A): 269 ftZ <br /> E. Registered Width: �ft <br /> F. Minimum Designed Trench Length=Bottom Area (3.C)=Trench Width(3.D) <br /> 269 ft2 T 3.0 ft= 90 ft <br /> G. Enter the Registered Product Component Length: �ft <br /> H. Number of Components=Minimum Total Length Required divided by Component Length(Round up) <br /> 90 ft: � ft= 23 components <br /> I. Actual Total Trench Length= Number of Components X Component Length: <br /> 23 components X 4.0 ft = 92 ft <br /> J. Calculate Minimum length per trench based on Contour Loading Rate: Design Flow:CLR= <br /> �gpd=�gal/ft = #VALUE! ft <br /> K. Select No. of Trenches: �trenches <br /> L. Length per trench=Actual Trench Length =Number of Trenches. Recommended to not exceed 3.J. <br /> 92.0 ft: �gal/ft = 23.0 ft <br /> M. Select Trench Spacing: �ft (typically 5- 12 ft from center to center) <br /> N. Calculate Lawn Area:Trench Length X Trench Spacing =square feet of lawn area <br /> 92 ft X�ft = 448 ft2 lawn area <br /> Comments: <br />