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3.TRENCH CONFIGURATION: REGISTERED PRODUCTS - CHAMBERS AND EZFLOW <br />A. <br />B.Registered Product: <br />C.Select Sidewall Height:inches =ft <br />D.Design Bottom Area (3.A):ft2 <br />E.Registered Width: ft <br />F. <br />ft2 ÷ ft =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 />ft ÷ ft =components <br />I.Actual Total Trench Length = Number of Components X Component Length: <br />components X ft <br />J.Calculate Minimum length per trench based on Contour Loading Rate: Design Flow ÷ CLR = <br />gpd ÷ 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 />ft ÷ 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 />ft X ft =ft2 lawn area <br />Comments: <br />Sidewall <br />Absorption <br />(inches) <br />Bottom Area <br />Multiplier <br />Design <br />trench <br />bottom area <br />34 4.0 ft = 136 <br />0.8 <br />4 34 <br />133 <br />0.6 300 <br />18.8 <br />400 <br />6 800 <br />12.0 <br />136.0 5 gal/ft =27.2 <br />6 <br />136 <br />5 <br />gal/ft = <br />400 <br />3 <br />225.0 <br />3.0 <br />Initial required <br />trench bottom area <br />(ft2): (from 1.D) <br />Bottom Area <br />Reduction <br />34%0.66 330 <br />1 <br />500 <br />6 to 11 <br />1.0 <br />Infiltrator Quick4 HC Chamber <br />400 <br />500 <br />12 <br />12 to 17 <br />40%24 <br />20% <br />18 to 23 <br />133 <br />Minimum Designed Trench Length = Bottom Area (3.C) ÷ Trench Width (3.D) <br />4