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n --co2c,(e /- PRml O`regom REDE - VEr DEQ Approved Product Descriptions APR 0 9 2a�� • Zfdow is approved in Oregon by the DEQ and the ing for standard 2 foot wises . - Uniform BuildingCode Division. trenc -a -xam• •''i e ...t2619: • jk a , o foot grave' -ri1 w .' -s�I i ION DEQ approvals include: inear feet of trench, the 1201 ' s- " 0 Standard disposal trenches tern will be sized at 100 linear feet. ▪ Capping fill systems II 1201 P GEO • Sandfilter gravel-less absorption trenches - \ • Seepage trenches - • v9vvv 99999 a Steep slope systems • vv v v,• = - - - - v vvv. vvc 4 cv¢"...rfl .. vv • Curtain drains - v v ,_ v v . •• - Tile dewatering systems 12 c v 1 ,IT;• V 9 vv -1= I--. vv . Pressure distribution systems i 1, E vu '-.L;; 1''= . : o vv vvovvvvv v v v� vvvVvv V V V vvVv •vv Building Code approvals include: SV 9 9 v 9 9 v 9 9 9 9 77 <t-12"—24"--D . Foundation drains ; Roof drain systems - Figure 1. .. /" 10 Standard Disposal Trench r. The 1202H Evaluation: A.-The 1201P/120113:-GEO Evaluation: The 1202H drainfield system(two-12 inch a. The 1201 P drainfield system consists •iameter cylinders)maybe in a hori- of one, 12-inch diameter cylinder zo- al configuration m a 24 inch wide across the bottom of a trench 12 to disposa - _ The cylinders shall be 24 inches wide. The 1201 P cylinder placed side-by-side and in contact with contains aggregate and a four-inch each other. Serial distribution methods diameter perforated flexible plastic limit the maximum effluent depth to no pipe as is typically used in septic sys- more than 6 inches higher than the invert - tern drainlines.The pipe shall be cer- level of the perforated piping within the tified as complying with ASTM F 405 higher trenches. The minimum backfill - Heavy. Duty. The netting for central depth is 6 inches when equal distribution cylinder is tied off at both ends of the methods are used; and 12 inches with pipe.The pipe may be connected by serial distribution methods. The IZfiow an internal coupling device to allow brand 1202H will be sized at the same continuous flow from one section to required linear foot sizing for standard the next. 2 foot wide gravel trench. For example, if the sizing for a two foot gravel trench b. The difference between 1201P,and requires 100 linear feet of trench, the 1201 P-GEO is the GEO filter fabric. 1202H system will be sized at 100 linear The top of the cylinder contains a feet. The cylinder with pipe may be in- filter fabric pre-manufactured in be- stalled on either side within the trench. _ tween the netting and aggregate. The fabric is inserted to prevent soil intrusion. The installer shall make sure the fabric is on top before final 1202H Horizontal System backfilling_ c. Site, soil and design requirements of c c v v v : ' _ - ' V V • the 1201P system shall be the same cococ ov• ,�11= � •cv as required for the standard stone 1�n0E_7-,rr filled disposal system (containing •oo d%d -i" '— '�' oiTA , drain media 12 inches deep) as de- vv ' v v v v v v v v v v •v v . V v• 9 V 0 c 9 0 9 0 0 VP scribed in OAR Chapter 340, Divi- v v . c v v v v v v v v v• v v Bions 71 &73. G— ,—t.- Figure —'�Figure 2. d.The llZflow brand 1201 P will be sized at the same required linear foot siz- 3 L