Ontario Grease Trap Sizing Calculator

This Ontario Grease Trap Sizing Calculator helps commercial kitchen operators determine the proper size for their grease interceptors. Proper sizing ensures compliance with Ontario regulations and prevents plumbing system issues.

How to Use This Calculator

To use this calculator, follow these steps:

Enter the number of seats in your commercial kitchen
Select the type of kitchen (fast food, fine dining, etc.)
Click "Calculate" to determine the required grease trap size
Review the result and compare it with your current setup

The calculator uses standard Ontario regulations and industry best practices to provide accurate sizing recommendations.

Formula and Assumptions

The grease trap size is calculated using the following formula:

Grease Trap Size (gallons) = (Number of Seats × 0.5) + (Kitchen Type Factor)

The calculator uses these assumptions:

Standard grease production rates for Ontario commercial kitchens
Kitchen type factors based on Ontario Building Code requirements
Average grease-to-water ratios for different food service types

Note: These calculations are based on average conditions. Actual requirements may vary based on specific kitchen operations and local regulations.

Worked Example

For a commercial kitchen with 50 seats and a fast food kitchen type:

Number of seats = 50
Kitchen type factor = 5 (for fast food)
Calculation: (50 × 0.5) + 5 = 25 + 5 = 30 gallons

This example shows that a 30-gallon grease trap would be appropriate for this kitchen.

Frequently Asked Questions

What is the minimum grease trap size required in Ontario?: The minimum grease trap size in Ontario is typically 30 gallons for commercial kitchens. However, the exact size depends on the number of seats and kitchen type.
How often should a grease trap be pumped?: Grease traps should be pumped every 30 to 60 days, depending on the kitchen's grease production rate. Regular maintenance helps prevent overflows and system failures.
What happens if a grease trap is too small?: A grease trap that's too small will overflow, causing grease to enter the sewer system. This can lead to plumbing backups, foul odors, and potential health code violations.
Are there any Ontario regulations for grease trap maintenance?: Yes, Ontario's Building Code requires regular grease trap maintenance and inspection. Commercial kitchen operators must follow these regulations to avoid penalties.