15
Step 11: In most cases, the Fuji Clean treatment system will vent through the building’s septic influent
line and building plumbing. In cases where there is an influent pump, or in severe downdraft
locations, a separate vent should be considered. If you do choose to install a vent, be sure that the
vent slopes toward the tank so that any moisture accumulation drips back down toward the tank.
Step 12: During final landscaping, seeding
etc., be sure to pitch final grade away from
covers to sweep surface water away from
treatment tank.
Step 13: Fill out Warranty Activation Card (received with this Installation Manual) and return to
Fuji Clean USA to activate system Warranty. If this card cannot be found, please contact Fuji
Clean USA for voice or online Warranty activation. 207-406-2927.
3” port for optional air vent line. If not used,
install plug in port by turning clockwise to tighten.
(Note: 2 ports in CE21, 30, CEN14 and 21).
If optional air vent line is installed,
slope conduit toward tank to
prevent moisture accumulation
ONE unit
<16 feet
>16 feet
Commercial
3” (φ75)
4” (φ100)
Local regulations may specify required vent pipe
diameter
Keep horizontal vent pipe as short as possible.
Vertical pipe length should be 2 times longer than
horizontal
Installation of a positive flow ventilation fan
facilitates better ventilation
Greater temperature differential between tank and
outside air facilitates more effective ventilation
One vent line is able to connect system clusters of
2 to 4 units with 4" diameter pipe.
Joining point of tank and vent line within 16feet.
In case of over 5 units, use two (2) vent lines.
Vent pipe diameter