© Presby Environmental, Inc., Maine Design & Installation Manual, June 2019 Edition -4-
3.0 AES and ES System Components
3.1
Advanced Enviro-Septic and Enviro-Septic Pipe
a) Plastic pipe made with a significant percentage of recycled material
b) 10 ft. sections (can be cut to any length)
c) Ridged and perforated, with skimmer tabs on interior
d) AES only: Bio-Accelerator along bottom of pipe (sewn seam is always placed up).
e) Surrounded by a mat of randomly oriented plastic fibers
f) Wrapped in a non-woven geo-textile fabric stitched in place
g) Exterior diameter of 12 in.
h) Each 10 ft. section has a liquid holding capacity of approx. 58 gallons
i) A 10 ft. length of AES or ES pipe is flexible enough to bend up to 90°
3.2
Offset Adapter
An offset adapter is a plastic fitting 12 in. in diameter with an inlet hole designed to accept a 4-
inch sewer line, raised connection or vent pipe. The hole is to be installed in the 12 o’clock
position. The distance from the bottom of the Offset Adapter to the bottom of its inlet hole is 7
in. When assembling pipes into rows, note that the geo-textile fabrics are placed over the edges
of the Offset Adapter and Couplings.
3.3
Double Offset Adapter
A double offset adapter is a plastic fitting 12 in. in diameter with two 4 in. holes designed to
accept a 4 in. inlet pipe, raised connection, vent or vent manifold, and/or bottom drain,
depending upon the particular requirements of the design configuration. The 4 in. holes are to
be aligned in the 12 o’clock and 6 o’clock positions. The holes are positioned 1 in. from the
outside edge of the double offset adaptor and 2 in. from each other.
3.4
Coupling
A coupling is a plastic fitting used to create a connection between two pieces of pipe. Note that
the couplings are wide enough to cover 1 or 2 pipe corrugations on each of the two pipe ends
being joined. The couplings feature a snap-lock feature that requires no tools. When
assembling pipes into rows, note that the geo-textile fabric does not go under couplings. Pull
fabric back, install coupling, and then pull fabric over coupling. Also note, during installation
in cold weather, couplings are easier to work with if stored in a heated location (such as a
truck cab) before use.
3.5
Raised Connection
A raised connection is a PVC Sewer & Drain pipe configuration which is used to connect pipe rows. Raised
connections extend 2 in. to 4 in. into pipe and are installed on an angle (as shown below). All PVC joints should be
glued or mechanically fastened.
SLOPING BED
2"-4"
LEVEL
OFFSET
ADAPTER
4"DIA. RAISED CONNECTION BETWEEN ROWS
LEVEL BED