Geotextile Sand Filter GSF

The Eljen GSF (Geotextile Sand Filter) is an alternative for onsite septic leachfield systems. The system is made up of geotextile fabric and a plastic core material that work together to provide vertical surface area throughout each Module and aids in oxygen transfer. The GSF applies treated effluent to the soil, increasing the soil’s long term acceptance rate. A Specified Sand layer provides additional filtration, and prevents saturated conditions.