Design Technical Information

Design Configurations

The Advanced Enviro-Septic™ (AES) Treatment System and the Enviro-Septic® Wastewater Treatment System can be designed in a number of configurations to suit your site.

The following are important rules of thumb to follow when designing an Enviro-Septic® system:

  • Certification is required in most states. Please reference your state specific design and installation manual for details. If your state does not require certification, keep in mind Presby Environmental highly recommends it. (Those who are certified are added to our customer referral list.);
  • In general, AES and Enviro-Septic® System sizing is based on daily design flow while taking into consideration system slope, center-to-center spacing and bed length;
  • Longer fields are preferred to shorter fields. Long, narrow configurations provide the optimal flow and absorption conditions for distribution of treated effluent into the underlying soil;
  • Serial distribution configuration is preferred over distribution box layouts because it is quick to develop a strong biomat in the first line, providing improved effluent treatment. Basic serial distribution provides a longer flow route to allow decomposition of solids and greases, providing improved long term treatment;
  • Adequate ventilation is essential to the proper functioning of the AES or Enviro-Septic® System. For venting requirements and specifications reference your state specific design and installation manual;
  • Effluent filters are not recommended, due to the possibility of suffocation to the AES or Enviro-Septic® System (more information see FAQ);
  • The use of a garbage disposal adds more solids to a septic system than is usually present. Please adjust the tank sizing per your state regulations (more information see FAQ);
  • Water purification systems and water softeners should not discharge into an AES or an Enviro-Septic® System unless the system is designed to accommodate this equipment (more information see FAQ).

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Sloping configurations reduce fill requirements and impact the natural contour less.  (Additionally, sloping sites typically have better draining soils and a lower water table resulting in smaller systems.)

PresbySlope

PresbyCurveCurved and irregular shaped configurations are used to avoid site obstacles and setbacks and are utilized where areas are to be preserved.

CurvesPresbyCurve2Multi-LevelTM configurations offer nearly double the bacterial surface area in the same footprint and provide an excellent solution for sites that are extremely limited.