Grease trap violations are one of the most common reasons restaurants in Nassau and Suffolk County get cited during health inspections. The fix is simple — regular cleaning on a proper schedule. The problem is most restaurant owners don’t know what that schedule should be until they get a violation.
Here’s what you need to know about grease trap maintenance on Long Island.
What a Grease Trap Actually Does
A grease trap (also called a grease interceptor) captures fats, oils, and grease (FOG) before they enter the municipal sewer or cesspool system. When grease solidifies in sewer lines, it causes blockages that can back up into your kitchen and neighboring properties — and result in fines from the county.
Under-sink traps are small and need cleaning frequently. Outdoor interceptors are larger and can go longer between services. Both require documented cleaning records.
How Often to Clean
The standard rule used by most health inspectors: clean when the trap is 25% full of grease and solids. In practice, that means:
| Kitchen Volume | Trap Type | Cleaning Frequency |
|---|---|---|
| High-volume (full-service restaurant) | Under-sink | Weekly to bi-weekly |
| High-volume | Outdoor interceptor | Monthly |
| Mid-volume (deli, café, catering) | Under-sink | Monthly |
| Mid-volume | Outdoor interceptor | Quarterly |
| Low-volume (small café, office kitchen) | Under-sink | Quarterly |
These are starting points. Actual frequency depends on your menu, how much frying you do, and your trap’s capacity. We can assess your system and recommend a schedule.
What Nassau and Suffolk County Require
Both Nassau and Suffolk County health departments require:
- Grease traps to be cleaned by a licensed waste hauler
- A service manifest (paper trail) for every cleaning — date, volume removed, disposal site
- Records kept on-site and available for inspection
During a health inspection, the inspector may ask to see your grease trap service records. If you can’t produce them, you can be cited even if the trap is currently clean. Documentation matters.
Rapid Response Cesspool provides a signed service manifest after every cleaning. Keep it in a folder in the kitchen — inspectors know what to look for.
What Grease Trap Cleaning Costs on Long Island
| Service | Typical Cost Range |
|---|---|
| Under-sink trap cleaning (indoor) | varies by job per visit |
| Outdoor interceptor pump-out | varies by job depending on size |
| Emergency cleaning (backup/overflow) | varies by job+ |
| Scheduled maintenance contract | Negotiated — saves 15–25% vs. on-call |
A maintenance contract with a fixed schedule is almost always cheaper than on-call cleaning — and it keeps you compliant without having to think about it. We set up contracts for restaurants, diners, delis, and commercial kitchens across Long Island.
Signs Your Grease Trap Needs Immediate Service
- Slow kitchen drains
- Grease smell from floor drains or the trap itself
- Visible grease backup at floor drains
- More than 25% capacity used (check the baffle level)
Don’t wait for a health inspection to find the problem. If your kitchen drains are slow, the grease trap is the first place to check.
Schedule Service for Your Restaurant
Rapid Response Cesspool services grease traps for restaurants, diners, delis, and commercial kitchens throughout Nassau and Suffolk County. We work around your kitchen schedule — early morning or late night — to minimize disruption.
Call to set up a cleaning schedule or request emergency service.