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How often does a grease trap need pumping?
The 25 percent rule is the real trigger, not the calendar. A busy kitchen near downtown Cary can hit that fats-oils-grease threshold in a few weeks; a slower operation might stretch it longer, much like the interval questions we answer on porta potty rental cost for unrelated equipment. Cary Porta Pros checks depth at every visit and sets the next date off what we actually measure, not a guess. This is different math than a household septic tank, which is typically pumped every 3 to 5 years depending on tank size and household size, covered on our how often to pump a septic tank page. Commercial grease trap pumping runs on a much tighter clock because the volume moving through a working kitchen line is constant. If your interceptor serves a shared commercial space, ask your neighbors what schedule they run so you are not the only one guessing. We coordinate service windows around kitchen hours so pumping does not collide with a lunch rush or a dinner service, the same way we schedule around events on our construction site services and event restroom rental jobs. Skipping a cycle risks a backup into the kitchen floor drain, which shuts down service faster than almost anything else in a restaurant, similar to how ignoring septic tank warning signs leads to a residential backup. For side-by-side comparison of interceptor service against other tank work we do, see septic pumping service and septic tank cleaning.
What does grease trap pumping cost in Cary?
Pricing depends on trap size, access, and whether the call is scheduled or same-day, the same variables that shape dumpster rental cost and temporary fence cost on other jobs.
| service | duration | low | typical | high |
|---|---|---|---|---|
| septic/grease pumping | day | 150 | 250 | 300 |
| septic/grease pumping | weekend | 50 | 100 | 150 |
Those bands cover the pump-out itself; a site with tight truck access or a trap buried under equipment can push toward the top end, much like tight access affects roll-off dumpster rental placement. Compare this against general septic tank pumping cost if your property runs both a residential tank and a commercial interceptor. We quote the job after seeing the trap, not off a phone description, because access and volume swing the number more than anything else, the same reason we ask to see a lot before quoting a storage container rental or a mobile office trailer rental.
Is emergency grease trap pumping available in Cary?
Yes. A grease trap that backs up during service hours does not wait for a Monday appointment, and Cary Porta Pros runs emergency grease trap pumping same-day when a kitchen calls with a backup or an overflow, the same urgency behind our emergency porta potty rental and disaster relief sanitation work. We cover Cary directly and reach nearby kitchens fast too: Morrisville sits 5.7 miles north, Apex is 8.2 miles southwest, and Durham is 18.2 miles north, so a call from any of those doesn't mean a long wait. If your grease trap failure has already flooded a floor drain or shut down a kitchen, our emergency septic service line handles it the same way we handle emergency tank pumping. Commercial kitchens that want to avoid the emergency call altogether should look at how often to pump a septic tank for the logic behind a fixed schedule, then let us set a recurring date instead of waiting for a warning sign. Warning signs are also worth knowing ahead of time; see septic tank warning signs for what to watch for before it becomes a shutdown.
How do I know my grease trap is full?
Slow drains at the kitchen sink, a sulfur smell near the floor drain, or grease visibly rising to the trap lid are the usual signs. Once FOG and solids hit 25 percent of liquid depth, pumping is due. Cary Porta Pros checks depth at every scheduled visit so you are not relying on smell alone.
Can grease trap pumping happen during business hours?
Yes, and most kitchens prefer it scheduled around slow windows rather than closed entirely. We work with your kitchen manager to pick a time that avoids service disruption. Emergency calls happen whenever the backup happens, day or night.
What size grease traps do you service?
We service both small under-sink interceptors and larger in-ground commercial traps, sized the same way we size a 10 yard dumpster rental versus a 30 yard dumpster rental to the job. Volume and access determine the truck and crew we send, which is also why pricing varies by site rather than a flat rate.
Do you handle both restaurants and other commercial kitchens?
Yes. Cafeterias, food trucks with fixed interceptors, hotel kitchens, and standalone restaurants all use the same service, much like our portable restroom rental covers venues from a wedding restroom rental to a festival restroom rental. If your facility also needs holding tank rental during a renovation, we can quote both together.
How is grease trap pumping different from septic pumping?
A grease trap only handles FOG and food solids from a kitchen line, while a septic tank handles full wastewater from a building, a distinction worth knowing before you request a request a quote for either service. Both get inspected against the same 25 percent depth rule, but grease traps fill faster in an active kitchen than a residential tank ever does.

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