drainage fixture units

Grease Trap Calculator: GPM Sizing Formulas Explained

April 5, 2026April 5, 2026 by Andrew

Kitchen fixtures with water flow and a grease interceptor, cinematic style.

Most restaurants fail health inspections because they guessed at commercial grease trap sizing instead of using a grease trap calculator to determine exact GPM requirements. Getting this wrong costs thousands in replacement equipment and delayed permits. Key Takeaways: • The Uniform Plumbing Code requires grease interceptors sized at 2x peak GPM flow rate from connected … Read more

Grease Trap Sizing: The Complete Guide to Getting It Right

April 5, 2026April 5, 2026 by Andrew

High-tech kitchen scene illustrating grease trap and piping system with dramatic lighting.

Grease trap sizing mistakes cost restaurants thousands in emergency repairs, code violations, and system failures that shut down kitchens during peak hours. One undersized unit can trigger weekly pump-outs instead of quarterly service, turning a manageable expense into a budget nightmare. Key Takeaways: • GPM flow rate calculations determine 85% of commercial grease trap sizing … Read more