Grease Trap Rules for Florida Restaurants: A Practical Guide

Here is a practical guide to staying compliant and out of trouble.

Why the rules exist

A grease trap catches the fats, oils and grease that would otherwise flow into the sewer, congeal and block the line. Grease from food service is a leading cause of sewer blockages across Pinellas County, which is why the county runs a fats, oils and grease program that requires restaurants to maintain their traps and keep records. It is a shared obligation to the public sewer system, not just protection of your own line.

So the rules are less bureaucracy than a response to a real, recurring problem, and staying compliant keeps both your kitchen and the shared system running.

How often to clean the trap

There is no one size interval; it depends on how much grease your kitchen generates. A high volume operation with fryers needs frequent service, while a lighter food operation can go longer between cleanings. The practical rule is that the trap must be cleaned before it fills to the point it stops separating grease. Many programs reference a fill threshold as the trigger for service.

The right interval is the one that keeps your specific trap from overflowing. Scheduled grease trap cleaning matched to your volume is what keeps you compliant without paying for service you do not need.

Interior traps versus outdoor interceptors

• ✓Smaller operations often run a compact under sink or interior trap
• ✓Higher volume restaurants use a larger outdoor grease interceptor
• ✓The two need different service intervals and handling
• ✓An undersized trap for your volume will overflow no matter how often it is cleaned

Matching the equipment to the kitchen is part of getting grease management right, not just cleaning whatever is already installed.

What a neglected trap costs

A trap left too long stops separating grease, sends it into the sewer lateral where it congeals, and eventually causes a backup, often during service, that can close the kitchen and draw a compliance penalty. Cleaning up a grease backup mid service is far more expensive and disruptive than the routine pumping that would have prevented it. Where grease has already reached the line, jetting is needed to clear it, on top of servicing the trap. This is the classic case where maintenance is genuinely cheaper than the failure.

Keeping records and staying compliant

Beyond cleaning, the program expects you to keep records of maintenance, so documentation matters as much as the service itself. Keeping the trap on a sensible schedule and the paperwork in order is what keeps a health or code issue from arising. For restaurants across the dining corridors of Largo, Madeira Beach and the wider area, folding grease management into a broader commercial plumbing relationship keeps it from slipping.

Simple kitchen habits that cut grease at the source

Regular trap service is required, but good kitchen practice reduces how much grease reaches the trap in the first place, which stretches your intervals and protects your lines. The foundation is to keep fats, oils and grease out of the drains entirely: scrape and wipe greasy pots, pans and plates before washing, and collect used cooking oil for proper recycling rather than pouring it down a sink. Fit and maintain strainers on every sink to catch food solids before they combine with grease into a clog.

Train the kitchen staff on it, since consistent habits across a team are what actually keep grease down, and post simple reminders at the sinks. These practices do not replace the trap or its scheduled service, but they lower the load on it and cut the risk of a grease backup during service. Where grease has already built up in the line beyond the trap, jetting is what clears it, and pairing good habits with regular trap cleaning is the combination that keeps a kitchen running. Restaurants across the dining strips of Largo and Madeira Beach that get both right rarely face the mid service backup that catches out those relying on cleaning alone.

Common questions