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Grease Trap
Description:
Grease traps are under-ground tanks that receive wastewater flowing directly out
of a building with commercial food preparation such as a restaurant, gas station,
grocery store, deli, etc. Grease traps generally consist of a single-chambered,
baffled tank. Access risers allow the tank to be opened, pumped and checked.
F
unction:
The function of the grease trap is to stop grease from entering the downstream
septic system components – especially filters and drainfields. It functions much
the same as a sep
c
ompartment and the baffles go deeper in the tank to allow for more floating
grease buildup.
M
aintenance:
•
Commercial systems must be checked yearly by a certified O&M provider.
• Grease traps must be checked regularly and pumped when ne
Depending on the establishment, this could be monthly, quarterly, annually,
etc.
• Visually inspect the tank when pumping for damage, leaks, etc.
• See Sections 1 & 2 for more information on protecting your
IN
FROM
SOURCE
TANK
WALLS
tic tank with the exception that it's generally a single
ACCESS
RISERS
FLOATING SOLIDS
CLARIFIED ZONE
SETTLED SOLIDS
- 44 -
cessary.
tanks.
BAFFLES
OUT
TO
SYSTEM
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