Grease Trap Size Calculator
Estimate grease interceptor liquid capacity from fixture volume and drain time.
Estimated result
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How this calculator works
Estimate grease interceptor liquid capacity from fixture volume and drain time.
Required flow = usable fixture gallons ÷ drain time; capacity = flow × retention factor
Planning note
Results are estimates. Confirm local plumbing codes, product specifications and licensed-professional requirements before construction or safety-critical work.