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Grease Trap Pumping
Frequency Calculator

Colorado law requires grease traps to be pumped when fats, oils & grease reach 25% of total trap capacity. Enter your details below to find out exactly how often your trap needs service — and stay ahead of health inspectors.

25%
Colorado Pump Threshold
State & municipal FOG ordinances require pump-out before trap reaches 25% capacity
30–90
Typical Service Range (Days)
Varies widely by trap size, kitchen type, and volume. Most restaurants fall in this window.
$500+
Fine Per Violation
Denver and most Colorado cities issue fines starting at $500. Repeat violations risk closure.

Calculate Your Schedule

Based on Colorado FOG regulations and industry-standard grease generation rates. Results are estimates — actual accumulation varies by menu, cooking methods, and equipment.

1 Grease Trap Size
gallons total capacity
Check the sticker on your trap lid or your installation paperwork.
2 Establishment Type
3 Meals / Covers Served Per Day
meals/day
20 (quiet cafe)150 (typical diner)300 (busy restaurant)600+ (high volume)
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Fill in the details
Enter your trap size, establishment type, and daily meal count to see your pumping schedule.

How This Calculator Works

This tool uses the industry-standard FOG accumulation model referenced by Colorado municipal FOG programs. The core formula:

// Colorado 25% pump threshold
Pump threshold = Trap size × 0.25
// Daily grease accumulation
Daily FOG = Meals per day × Generation rate
// Days until service required
Interval (days) = Pump threshold ÷ Daily FOG

Grease Generation Rates Used

Full-service restaurant0.010 gal/meal
Fast food / QSR0.006 gal/meal
Cafeteria / institutional0.008 gal/meal
Bar / lounge0.004 gal/meal
Bakery / coffee shop0.002 gal/meal
Deli / sandwich shop0.006 gal/meal
Food truck / limited menu0.005 gal/meal

Disclaimer: These rates are industry averages derived from standard FOG program reference materials. Actual accumulation varies based on cooking methods, menu composition, equipment efficiency, and grease management practices (e.g. dry-wiping pans, use of strainers). A technician inspection gives you an accurate baseline for your specific kitchen.

Don't guess — get a free inspection.

Not sure where your trap currently stands? A free compliance inspection gives you the real numbers: current FOG level, days to threshold, and a written report for your health inspection records.

Free Inspection → Read Compliance Guide