Wastewater
flowing
from
restaurants
or other
types
of commercial
facilities
that
produce
fats,
oils,
and grease
are required
to have
a grease
trap or
multiple
grease
traps
in line
to the
sewer system.
Grease
traps
are designed
to intercept
the flow
of FOG
(Fats, Oils,
and
Grease)
to the
wastewater
treatment
plants
who do not
want
this product
in their
waste
streams.
They are
70-90%
effective
in capturing
the FOG.
These
grease
traps/interceptors
are
usually
about 1,200
gallons
in size
constructed
of concrete
or plastic
and
are installed
underground
just
outside
the
commercial
facility
using
them,
sometimes
in series
of 2
or 3
tanks
as required.
Grease
traps
are
always
full
except
just
after
pumping.
As the
wastewater
flows
in it
impacts
against
an inlet
tee
designed
to decrease
stirring
up the
wastes
in the
tank.
As wastewater
flows
in,
an equal
amount
flows
out the
other
side
through
the
outlet
and
on through
the
sewer
system.
In between
is a
baffle
in the
tank
which
keeps
most
of the
solids
and
floating
scum
on the
inlet
side
of
the
tank.
Grease
traps
are
required
to
be pumped
and
cleaned
every
three
months
at
least,
and
a
hauler manifest
must
be completed
accurately
on
every
occasion
to
keep
in
compliance
with
city,
county,
and
state
regulations.
See
our Compliance section
for
more
details.
