Installing Advantex pretreatment and Geoflow Drip septic system EP97. Start to Finish installation.

In this video we install a new engineered septic system to replace an existing standard septic system. The design incorporates an Advantex AX20 pretreatment system, Ultraviolet (UV) disinfection and a Geoflow Drip dispersal field. The site soils consist of relatively well drained sandy soils down to about two feet below grade which sits on top of a firm impervious layer. During the winter months the top two feet of surface soil becomes saturated and has been inundating the standard leach field that exists at a depth of about 36" below grade. The purpose of the new septic design is to deliver highly treated effluent through the Geoflow drip lines at a depth of six inches below grade in an attempt to eliminate storm water and ground water contamination. In this video I show you how I assemble the many components of this advanced septic system. I do my best to provide installation techniques and tips to help any septic system installer that will be building one of these septic systems. About septic systems: Effective wastewater management requires more than basic septic tank installation. Modern septic systems integrate advanced treatment technologies with carefully engineered disposal methods to protect groundwater quality while providing reliable long-term service. Sonoma County properties face unique challenges from varied soil conditions, environmental regulations, and topographic constraints that demand specialized expertise and proven installation techniques. Engineered septic systems address challenging site conditions where conventional or “standard” septic systems cannot function effectively. These engineered solutions include sand filter systems, Wisconsin sand mound systems, at-grade systems, pressure distribution leach fields, Geoflow drip dispersal fields and more. Some difficult soils or environmentally sensitive areas require that the effluent is pre-treated and UV disinfected prior to being discharged to some of the above mentioned treatment / dispersal systems. Some of the most advanced wastewater treatment systems for both residential and commercial projects can be design and built to produce a highly treated effluent that in some regions would be allowed for above ground dispersal or irrigation. Each engineered septic system receives custom design consideration based on several detailed site evaluations. Advanced Septic Systems Engineered septic systems address site conditions where conventional installations cannot provide adequate treatment or environmental protection. Sand filter systems use constructed media beds allowing treatment of effluent before entering the ground, making them suitable for sensitive environmental areas or challenging soil conditions. These systems require specialized construction techniques and ongoing maintenance protocols to ensure effective operation. Pressure distribution systems use pumps and pressurized networks to distribute effluent evenly across disposal areas. This technology enables installations on sloped terrain, in shallow soil conditions, or where gravity distribution proves inadequate. Pressure systems require electrical components, alarm systems, and specialized maintenance procedures that differ significantly from conventional “standard” leach field installations. Mound systems elevate the treatment and disposal process above natural soil limitations through constructed sand beds. These installations address high groundwater, shallow soils or poorly draining soils that prevent conventional leach field installation. Mound construction requires precise grading, material selection, and proper installation techniques to ensure function and longevity. Leach Field & Drainage Systems Traditional leach fields use perforated pipes and gravel filled trenches to distribute treated effluent into surrounding soil for final filtration and disposal. Field sizing and configuration depend on soil percolation rates, groundwater levels, and regulatory setback requirements. Drip irrigation systems provide precise effluent distribution through low-pressure networks with individual emitters. This technology works effectively in challenging terrain or sensitive environmental areas where conventional leach fields prove impractical. Drip systems require filtration components, pressure regulation, and specialized maintenance procedures to prevent clogging and ensure uniform distribution. At-grade systems position the disposal area at natural ground level rather than excavated installation. These systems work well in areas with limited soil depth or high groundwater conditions. At-grade installations require careful surface preparation prior to placement of aggregate in order to ensure the effluent will pass through the aggregate and into the soil as designed.