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Table of Contents <br /> SUBJECT PAGE <br /> GLOSSARYOF TERMS................................................................................................................3 <br /> GSF SYSTEM DESCRIPTION.......................................................................................................4 <br /> 1.0 SYSTEM PRECONDITIONS....................................................................................................5 <br /> 2.0 DESIGN AND INSTALLATION ................................................................................................6 <br /> 3.0 TRENCH INSTALLATION SIZING AND GUIDELINES.......................................................... 12 <br /> 4.0 BED INSTALLATION SIZING AND GUIDELINES................................................................. 15 <br /> 5.0 MOUND INSTALLATION GUIDELINES ................................................................................ 18 <br /> 6.0 DOSING DISTRIBUTION GUIDANCE...................................................................................20 <br /> 7.0 PRESSURE DISTRIBUTION GUIDANCE .............................................................................20 <br /> 8.0 SYSTEM VENTILATION........................................................................................................22 <br /> GSF DRAWINGS AND TABLES <br /> DRAWINGS <br /> FIGURE 1: GSF SYSTEM OPERATION ......................................................................................4 <br /> FIGURE 2: TYPICAL A42 CROSS SECTION...............................................................................6 <br /> FIGURE 3: VERTICAL SEPARATION DISTANCE.......................................................................7 <br /> FIGURE 4: SEQUENTIAL DISTRIBUTION DROP—BOX DETAIL..................................................8 <br /> FIGURE 5: PLAN VIEW—TRENCH SYSTEM EXAMPLE............................................................ 13 <br /> FIGURE 6: SECTION VIEW—TRENCH SYSTEM EXAMPLE—LEVEL SITE............................. 13 <br /> FIGURE 7: SECTION VIEW—TRENCH SYSTEM—SLOPING SITE.......................................... 13 <br /> FIGURE 8: PLAN VIEW—BED SYSTEM EXAMPLE—LEVEL SITE ........................................... 16 <br /> FIGURE 9: SECTION VIEW—BED SYSTEM EXAMPLE............................................................ 16 <br /> FIGURE 10: SECTION VIEW—BED SYSTEM EXAMPLE—SLOPING SITE.............................. 16 <br /> FIGURE 11: CROSS SECTION—MOUND SYSTEM .................................................................. 18 <br /> FIGURE 12: CROSS SECTION—SLOPED MOUND SYSTEM................................................... 18 <br /> FIGURE 13: PRESSURE PIPE PLACEMENT.............................................................................20 <br /> FIGURE 14: PRESSURE CLEAN OUT .......................................................................................21 <br /> FIGURE 15: CONTOURED TRENCH PRESSURE DISTRIBUTION USING ORIFICE SHIELDS 21 <br /> FIGURE 16: VENT LAYOUTS FOR GRAVITY AND LOW-PRESSURE SYSTEMS ....................22 <br /> FIGURE 17: AIR BY-PASS LINE PLAN VIEW FOR VENTING OF PUMPED SYSTEMS ............22 <br /> FIGURE 18: GSF WITH 4"VENT EXTENDED TO CONVENIENT LOCATION ...........................23 <br /> TABLES <br /> TABLE 1: SPECIFIED SAND SIEVE REQUIREMENTS............................................................... 3 <br /> TABLE 2: APPLICATION RATES BASED ON PERCOLATION................................................. 10 <br /> TABLE 3: APPLICATION RATES BASED ON THE RECEIVING SOIL...................................... 11 <br /> 2022 California Design&Installation Manual Page 2 www.eljen.com <br />