Grease Trap Size Calculator

Estimate the minimum required capacity of your grease interceptor based on fixture flow rates and local retention requirements using the PDI method.

Plumbing & Drainage

Grease Trap Size Calculator (PDI Method)

Estimate the minimum required capacity of your grease interceptor based on the flow rate of connected fixtures and local retention requirements.

Fixture Flow Rate Inputs

Add all fixtures (sinks, dishwashers, etc.) that drain into the grease trap.