How a Eljen GSF System works-

How the Eljen GSF Geotextile Sand Filter System is a cost-effective upgrade from other septic technologies. Eljen GSF is compromised of a proprietary two-stage Bio-Matt™ pre-treatment process, GSF modules apply a better secondary aerobic effluent to the soil, increasing the soils ability to accept the effluent. The result in an Eljen GSF is a superior treatment in a smaller absorption area. This means the soil can absorb the effluent more easily, resulting in a better performing system in smaller area than other systems.

  • Incoming effluent and bacteria flow through the perforated pipes which distribute the effluent over the modules.
  • Open our channels in the modules allow beneficial bacteria to grow on the Bio-Matt fabric and treat effluent.
  • A geotextile fabric covers the top and sides of the GSF Modules, protecting the system’s sand and soil from fine particles that can clog the system. Is also helps maintain effluent storage inside the modules.
  • After effluent passes through the GSF Modules, a lighter, secondary biomat forms on the layer sand below the system.
  • Treated effluent is then absorbed by the native soil where final filtration takes place.