A grease trap needs pumping once fats, oils, grease and solids reach 25 percent of the liquid depth, which for a busy San Rafael kitchen often lands somewhere between every 4 and 12 weeks. San Rafael Porta Pros runs grease trap pumping on a schedule built around your fryer volume, not a generic calendar.
The 25 percent rule is the real trigger, not a fixed date on a calendar. A small front-of-house trap at a cafe fills slower than a full-line kitchen doing dinner service seven nights a week. San Rafael Porta Pros checks depth at every visit and adjusts the interval instead of guessing. This matters because a trap that overflows sends grease into the line, and that backup usually happens during a rush, not a slow Tuesday. If you are still building out a routine, our septic tank cleaning crews handle similar scheduling for house tanks, and the logic carries over: measure, then set the interval. Restaurants near San Rafael's downtown corridor tend to run shorter intervals than a suburban strip mall kitchen 5 miles out, simply because ticket volume drives buildup faster. We also support standalone holding tank rental for kitchens mid-renovation with no working trap connection yet.

Cost depends on trap size, access, and how often you need the truck back. Below are the bands we work inside for related services, since grease trap pricing tracks closest to septic pumping structure in this market.
| service | duration | typical range |
|---|---|---|
| septic pumping | day visit | 150 to 300 |
| septic pumping | weekend call | 50 to 150 |
| service fee | monthly contract | 100 to 300 |
A one-time emergency grease trap pumping call runs closer to the septic day-visit band above, while a standing commercial contract runs on the monthly service fee structure. For a full cost breakdown by tank size, see septic tank pumping cost and dumpster rental cost if you're bundling waste removal for a kitchen remodel. Restaurants doing a full teardown often add a 10 yard dumpster rental for demo debris alongside the pump-out.
Yes. A grease trap that backs up during service hours cannot wait for next week's route. San Rafael Porta Pros dispatches for emergency grease trap pumping the same way we handle emergency septic service, because a flooded floor drain and a failed septic line create the same kind of shutdown risk for a business. San Rafael sits inland from the bay, and kitchens along the main commercial strips call us most often when a Friday night rush overwhelms an undersized trap. We've run calls out to San Anselmo, 4.3 miles west, and Larkspur, 5.1 miles southwest, so a San Rafael-based crew reaches most Marin kitchens inside the same afternoon. If your grease issue is really a septic backup upstream, our septic tank warning signs page covers what to watch before it becomes an emergency call. Construction sites converting a space into a new restaurant should also look at construction site services for interim sanitation, and job sites nearby often pair that with a temporary fence rental during buildout.
Handwashing near any grease-handling station falls under 29 CFR 1910.141(d)(2), which requires soap and towels or a hand-drying device at wash stations; sanitizer alone doesn't satisfy it. If your kitchen build includes exterior handwashing station rental or a portable sink rental for a temporary prep area, keep that requirement in mind. Crews spraying degreasers or solvent-based cleaners around a trap enclosure should also know that OSHA 1926.51(f)(1) requires washing facilities specifically where workers apply paints, coatings, herbicides or insecticides, or handle other harmful contaminants.
Frequent overflows between scheduled pumps, slow drains, and odor at the drain line are the usual signs. If your interval keeps shrinking even with steady kitchen volume, the trap itself may be too small for current output. San Rafael Porta Pros can measure fill rate on the next visit and recommend a resize before it becomes a recurring emergency call.
Technically yes, but most cities regulate disposal of grease waste, and hauling it yourself without the right permits and containers creates liability. A licensed service handles disposal correctly and keeps records you may need for health inspections.
Grease and solids build past the 25 percent threshold, then start passing into the drain line. That leads to slow drains, backups, and sometimes a full shutdown during service. Skipping a cycle almost always costs more than the pump-out itself once you factor lost revenue.
The equipment and process overlap, but grease traps fill faster and need closer monitoring since they're tied to daily kitchen output. See how often to pump a septic tank for how residential tanks compare on interval.
Yes, we run routes out to Novato, 11.0 miles north, and San Pablo, 14.5 miles east, alongside daily San Rafael service. Check service areas for full coverage, or request a quote directly.
Yes. San Rafael Porta Pros delivers grease trap pumping across San Rafael and the surrounding metro, with same-day and next-day drop-off available on most orders.
Pricing depends on the unit and how long you need it. See our cost breakdown and request a free quote for an exact figure.
Standard rentals include scheduled service — a pump-out, a clean, a restock and fresh deodorizer. Busy or hot-weather sites can be serviced more often.
Call now or request a free quote — clean units, on-time delivery, transparent pricing.