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Glossary of Terms <br /> A42 Module 48"x 24"x 7" (L x W x H) <br /> Cover Fabric The geotextile cover fabric (provided by manufacturer) that is placed over <br /> the GSF modules. <br /> Design Flow The estimated peak flow that is used to size a GSF system is 150 gallons <br /> per day per bedroom. <br /> Distribution Box A plastic or concrete box that receives effluent from a septic tank and splits <br /> the flow to pipes placed above the GSF modules. For equal distribution, <br /> the outlet pipe orifices are typically set at the same elevation to equalize the <br /> flow to each line. <br /> GSF The Eljen Geotextile Sand Filter Modules and the 6-inch sand layer at the <br /> base and 6 inches along the sides of the modules. <br /> GSF Module The individual module of a GSF system. The module is comprised of a <br /> cuspated plastic core and geotextile fabric. <br /> Specified Sand To ensure proper system operation, the system MUST be installed using <br /> ASTM C33 Sand. <br /> ASTM C33 sand will have less than 10% passing the #100 Sieve and less <br /> than 5% passing the # 200 sieve. Ask your material supplier for a sieve <br /> analysis to verify that your material meets the required specifications. <br /> TABLE 1: SPECIFIED SAND SIEVE REQUIREMENTS <br /> ASTM C33 <br /> SAND SPECIFICATION <br /> Sieve Square Specification <br /> Sieve Size Opening Size Percent Passing <br /> (Wet Sieve) <br /> 3/8 inch 9.52 mm 100 <br /> No. 4 4.76 mm 95 - 100 <br /> No. 8 2.38 mm 80 - 100 <br /> No. 16 1.19 mm 50 -85 <br /> No. 30 590 pm 25-60 <br /> No. 50 297 pm 10 - 30 <br /> No. 100 149 pm < 10 <br /> No. 200 75 pm < 5 <br /> 2022 California Design&Installation Manual Page 3 www.eljen.com <br />