Commercial Grease Trap Maintenance Tips
Keeping a commercial grease trap in good shape isn’t glamorous, but neglecting it is a fast way to rack up plumbing bills, odors, and health code violations. A solid routine makes all the difference.

Start with a consistent cleaning schedule. Most kitchens need pumping every 1–3 months, but the real rule is the “25% rule”: when grease and solids take up about a quarter of the trap’s capacity, it’s time to clean it. High-volume operations may need service more often.

Daily habits matter just as much as scheduled service. Train staff to scrape plates and cookware into the trash before washing—this alone can dramatically reduce grease load. Installing sink strainers helps catch food solids before they reach the trap.

Use hot water carefully. It might seem helpful, but excessive hot water or degreasers can liquefy fats and push them past the trap, only to solidify further down the line and cause blockages. Similarly, avoid relying on chemical additives or enzymes as a shortcut—they often just move the problem downstream and can violate local regulations.

Inspect the trap regularly. Check for unusual odors, slow drainage, or visible buildup. Make sure the baffles and lids are intact and properly sealed—damaged parts reduce efficiency and can lead to leaks or pests.

Keep detailed maintenance logs. Many local health departments require documentation showing when the trap was cleaned and serviced. Staying organized protects you during inspections and helps you spot patterns in usage.

Finally, work with a licensed, professional grease trap cleaner and hauler with custom maintenance services that will meet your specific needs. Grease waste can’t just go down the drain or into regular trash—it needs to be handled according to environmental regulations.

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The information in this article was obtained from various sources not associated with All American Sewer Service Inc.. While we believe it to be reliable and accurate, we do not warrant the accuracy or reliability of the information. These suggestions are not a complete list of every preventative measure or solution. The information is not intended to replace manuals or instructions provided by the manufacturer or the advice of a qualified professional. All American Sewer Service Inc. makes no guarantees of results from use of this information.