How do I use the Commercial Restaurant Grease Trap Sizer?

Enter your specific project or financial parameters into the input fields above. The engine recalculates outputs dynamically in real time and updates visual charts and summary metrics.

Can I export and share these results?

Yes, you can generate shareable state links, export clean CSV spreadsheets, or print high-resolution executive reports with a single click.

Is this calculator free to use?

Yes, all calculation engines on ToolsVault are 100% free with no account registration or paywall required.

Plumbing Engineering & Commercial Kitchens

Commercial Kitchen Grease Trap Sizing Calculator

Calculate grease interceptor flow rates (GPM) and liquid holding volume (gallons) for restaurant 3-compartment pot sinks, dishwashers, floor drains, and mop sinks (UPC & IPC compliant).

Connected Kitchen Fixtures

3-Compartment Pot Sink Basin Dimensions (L x W x D in inches)

Connected Dishwasher & Pre-Rinse

Interceptor Architecture & Location

Code Mandated Sizing

Fixture Drainage Volume

3-comp sink 75% full (2-min drain period)

78 Gallons

Hydro-Mechanical Rating (GPM)

Minimum flow rate for point-of-use units

50 GPM / 100 lb Grease

Outdoor Gravity Interceptor Size

Precast concrete tank (30-min retention time)

1,000 - 1,500 Gallons

Uniform Plumbing Code (UPC) requires outdoor gravity interceptors to provide minimum 30-minute hydraulic retention time to allow animal fats (FOG) to cool and separate.