Product Spotlight - August 2019

Product Spotlight - August 2019

The GSF, or Geotextile Sand Filter, advanced wastewater treatment and dispersal system from Eljen is designed for sites requiring high performance in a tight space. Using a two-stage Bio-Matt pretreatment process, the GSF applies a better-than-secondary treated effluent to the soil, increasing the soil’s acceptance rate. The result is suitable effluent treatment in the smallest area possible.

“It actually provides a biomat management dimension that allows for the growth and maintenance of the biomat itself,” says Jim King, president of Eljen. “By maintaining the biomat away from the soil and maintaining it on the units, the long-term acceptance rates of the soil are preserved.”

GSF modules are made of geotextile fabric and a plastic core material that provide vertical surface area and oxygen transfer. Open-air channels within the module support aerobic bacterial growth, surpassing the surface area required for traditional absorption systems. A specified sand layer provides additional filtration and prevents saturated conditions.

“The geotextile fabric in the GSF unit is actually oriented vertically,” King explains. “During dosing events, effluent must pass through the geotextile fabric and any biomat that has been established. By maintaining the biomat vertically, we are able to introduce aerobic bacteria after doses to the septic field to break down and maintain the minimal biomat on the unit.”

To install, modules are placed along their 4-foot lengths on a base of stabilized specified sand. Then a 4-inch perforated pipe is centered on top of the modules and is secured with supplied metal clamps. Specified sand is placed along both sides of the module and at the beginning and end of each row once the cover fabric is in place. According to King, the system is a fit in several septic applications.

“Residentially, GSF systems are found on tight lots, lots with high water tables and sites with poor soils,” he says. “Commercially, the system allows for the owner to expand operations more than a simple conventional system would provide.”

GSF systems have also proven successful around the country, according to King. “We’ve had a 0.06% failure rate,” he says. “Customers also appreciate how easy it is to put the system in.” 800-444-1359; www.eljen.com.



Discussion

Comments on this site are submitted by users and are not endorsed by nor do they reflect the views or opinions of COLE Publishing, Inc. Comments are moderated before being posted.