Connecting Pipe with Couplings
Cutting Enviro-Septic® Pipe Lengths
Advanced Enviro-Septic™ (AES) and Enviro-Septic® pipe can be cut to any length. Pipe is manufactured in ten foot lengths. If the design calls for row lengths not divisible by ten, the pipe can be cut in the field.
Black Fabric Placed on the Outside of the Couplings and Offset Adapters
The black fabric that surrounds the pipe is placed on the outside of the couplings and offset adapters, never under. Once the fittings have been assembled with the pipe, pull the fabric towards the fitting. The fabric does not have to overlap the fitting and a few uncovered perforations in the pipe will not cause the pipe to fill with sand. The pipe may stretch like an accordion in warm weather. Pipe can be pushed back to its original length if desired.
Install the AES and Enviro-Septic® Pipe Level
Use System Sand to Hold the Pipe in Place
Offset Adapters Should be Installed with the Raised Connection Holes at 12 O’clock.
The offset adapter should be positioned so the raised connection hole is in the 12 o’clock position. If a bottom drain is used a double offset adapter will be used and the raised connection hole is in the 12 o’clock position while the bottom drain whole is in the 6 o’clock position.
The Raised Connection is Installed Level with the Top of the AES or Enviro-Septic® Pipe
The top of the Raised Connection is level with the top of the pipe. It is essential to the proper functioning of the system that the ends of the Raised Connections extend 2 to 4 inches into the AES or Enviro-Septic® Pipe.
- Review the design plan which can be located using the Interactive Map by clicking on the appropriate state and then on Approvals and Forms. If there are any questions, call the designer.
- If the plan does not require vents to be “remotely installed” or disguised we suggest you visit our venting section for information on alternatives to the “yard candy cane” and discuss any proposed changes with the designer and homeowner. The homeowner will thank you for your thoughtfulness.
- Protect all components from contamination of soil, grease, oil, etc.
- Prepare the site in accordance with our manual for your state (A manual for your state can be located using the Interactive Map by clicking on the appropriate state and then on Approvals and Forms). In general:
- Avoid smearing, drying out or compacting soils,
- Minimize soil disturbance,
- Keep heavy equipment off of the area where the treatment system will be installed, including all sand extensions in the plan,
- Use System Sand to fill all voids created by stump or rock removal, and
- Prepare the site in accordance with our manual for your state.
- Make sure to use System Sand (ASTM C-33 sand with less than 2% passing a #200 sieve) as required in the plan. Minimum requirements are 6 inches of System Sand under, over, and in between rows of pipe. A minimum of one foot of System Sand is required around the perimeter of the pipe. Plans may call for more. Follow the approved plans.
- Install the rows of pipe level within a tolerance of + or – ½ inch.
- Once the installation is complete and the excavation has been closed and covered using a minimum of 4 inches of topsoil or loam, make sure the surface is replanted with grass or other shallow-rooted, non-water seeking plants and protected from erosion.