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Approved EZflow Products As required by DEQ or local unit of government with D. EZflow 1201 P will be sized at the same required linear foot jurisdiction, sod or seed the drainfield area to control sizing for standard 2-foot wide gravel trench. For example, if erosion, as may be required by permit or local policy. the sizing for a 2-foot gravel trench requires 100-linear feet of trench,the 1201 P system will be sized at 100-linear feet. EZflow is approved in Oregon by the DEQ and the Uniform Building Code Division. The 1202H/1202H-GEO The 1202H drainfield system (two, 12-inch diameter DEQ approvals include: bundles) may be used in a horizontal configuration within •Standard disposal trenches a 24-inch wide disposal trench.The bundles shall be • Capping fill systems placed side-by-side and in contact with each other. Serial •Sandfilter gravel-less absorption trenches distribution methods limit the maximum effluent depth to •Seepage trenches no more than 6-inches higher than the invert level of the •Steep slope systems perforated piping within the higher trenches.The minimum •Curtain drains backfill depth is 6-inches when equal distribution methods •Tile dewatering systems are used, and 12-inches with serial distribution methods. • Pressure distribution systems The brand 1202H will be sized at the same required linear foot sizing for standard 2-foot wide gravel trench. For Building Code approvals include: example, if the sizing for a 2-foot gravel trench requires • Foundation drains 100-linear feet of trench,the 1202H system will be sized at • Roof drain systems 100-linear feet.The bundle with pipe may be installed on either side within the trench. Standard Disposal Trenches The 1201P/1201P-GEO 1202H-GEO A. The 1201P drainfield system consists of one, 12-inch di- ameter bundle across the bottom of a trench 12-to-24 inches ESTABLISH 6"MIN.COVER VEGETATIVE COVER wide.The 1201 P bundle contains aggregate and a four-inch OR PER CODE diameterperforated flexibleplastic pipe as is typically used in 1 �-'"`i ' ''�' ''�,1•oi1 P p Yp Y --;,-, - . septic system drainlines.The pipe shall be certified as com- plying with ASTM F-667.The netting for the central bundle is tied off at both ends of the pipe.The pipe may be connected {r by an internal coupling device to allow continuous flow from 12" 1 ; » ' _ • 4"PERFORATED PIPE one section to the next. lI• C. 12"EZflow B. The difference between 1201P and 1201P-GEO is the I 24"MIN. BUNDLE(TYP.) TRENCH GEO filter fabric.The top of the bundle contains a filter fabric WIDTH pre-manufactured in between the netting and aggreate. The Figure 2 fabric is inserted to prevent soil instrusion.The installer shall make sure the fabric is on top before final backfilling. The 1003T The 1003T product(three, 10-inch diameter bundles) may be C. Site, soil and design requirements of the 1201 P system used in either a triangular or horizontal configuration at all lo- shall be the same as required for the standard stone filled cations where a gravity-fed disposal trench (containing drain disposal system (containing drain media 12-inches deep) as media 12-inches deep) would otherwise be allowed. The described in OAR Chapter 340, Divisions 71 &73. bundles shall be placed in a triangular configuration when in- stalled within a 24-inch wide trench.One bundle shall contain 1201P-GEO pipeing and be centered and in contact with the other two NATIVE BACKFILL bundles. When used in a horizontal configuration, the bun- 6"MIN.COVER ESTABLISH OR PER COD VEGETATIVE COVER dles must be placed side-by-side and in contact with each other, within a trench at.least 30-inches wide. The center `. ; : FILTER FABRIC bundle shall contain piping. Serial distribution methods limit the maximum effluent depth to no more than 6-inches higher •= than the invert level of the perforated piping within the higher 's�:- S7 PERFORATED PIPE trenches.The minimum backfill depth is 6-inches when equal 12^EZflow distribution methods are used, and 12-inches with serial dis- 12"-24" (TYP.)BUNDLE( ) tribution methods. EZflow 1003T will be sized e at the same WIDTH required linear foot sizing for standard 2-foot wide gravel Figure 1 q Contact Infiltrator Water Technologies'Technical Services Department for assistance at 1-800-221-4436