FREE TOOL · Trap Schedule
Grease Trap Schedule Calculator
Trap size, meals served and kitchen type give a planning interval for pumping, using the common quarter-full rule.
Four quick steps.
- 01
Enter the trap size
In gallons, from the label or the plans.
- 02
Enter your volume
Meals served per day and days open.
- 03
Choose the kitchen type
How much grease it produces.
- 04
See the interval
A planning figure based on the quarter-full guideline.
About this tool.
What is the quarter-full rule?
A common guideline to service a trap before grease and solids fill about a quarter of its capacity.
Is this exact?
No. It is a planning estimate. Real intervals depend on the kitchen.
Does it replace local rules?
No. Follow your utility’s requirements, and treat this as a planning aid.
Related plans.
4×per yearPLAN C-02Food ServiceGrease Trap ServiceA trap that is serviced on a schedule keeps grease out of the line. We set an interval…QuarterlySee the plan 
12×per yearPLAN C-01Food ServiceRestaurant ProgramsGrease line, trap, floor drains and dish pit on one fixed rhythm, with a record for every visit…MonthlySee the plan 
6×per yearPLAN C-03Food ServiceGrease Line JettingThe line between the kitchen and the trap coats with grease no matter how good the trap is…Every other monthSee the plan