Grease Trap Pumping & Cleaning in Fargo

Grease trap pumping removes the fats, oils, and grease your kitchen sends down the drain before they reach Fargo’s sanitary sewer: a full pump-out of the trap, not a skim, with the waste hauled to city-approved discharge points and a disposal manifest left for your records. Indoor and under-sink traps typically run $150–$450 per visit (recurring service is often quoted lower, with floors around $125), on a cadence set by the 25% rule rather than a city-mandated calendar, because Fargo doesn’t codify one.

The exhaust system handles the grease going up; this page is about the grease going down. Both are compliance systems, both are documented, and both are cheaper on a schedule than in an emergency.

What a grease trap does, in one minute

Everything that leaves your pre-rinse sink, floor drains, and dish machine carries fats, oils, and grease, FOG, in the trade. Sent straight to the sewer, FOG cools, hardens, and builds blockages in the city’s collection system, which is why restaurants have traps at all. A trap is a baffled box, usually 20–100 gallons for indoor and under-sink units, that slows the flow so grease floats to the top, solids settle to the bottom, and clearer water exits the middle to the sewer.

The catch: a trap only works while it has capacity. As the grease cap thickens and the solids layer rises, the working middle shrinks, and a full trap passes FOG straight through as if it weren’t there. That’s the entire logic of the 25% rule: pump when combined FOG and solids reach a quarter of the trap’s capacity. It’s industry best practice and an EPA-recommended best management practice, not a codified ordinance in Fargo. Be wary of any vendor who presents it as a city mandate.

Fargo’s actual rules, stated honestly

Fargo runs a real FOG Program, administered through Water Reclamation’s Industrial Pretreatment Program together with Fargo Cass Public Health. What it does:

• Promotes best management practices and grease trap installation for food-service establishments.
• Sets discharge limits, codified in Fargo Municipal Code 17-0203, on what your building can legally send to the sanitary sewer.
• Controls disposal: hauled grease waste must go to city-approved discharge points.

What it does not do is prescribe a pumping calendar. Your cadence is set by your trap’s size and your kitchen’s grease production, measured against the 25% rule. A fry-heavy line with a 40-gallon trap might genuinely need monthly service; a coffee shop might be fine quarterly. Our walkthrough looks at your actual trap and proposes an interval, then adjusts it against what each visit finds, the same way the exhaust side adjusts cleaning to measured grease depth rather than guesswork.

Full pump-out vs. skim: where cheap service hides

Two vendors can both say “trap service” and sell different things.

A full pump-out removes the floating grease cap, the water column, and, critically, the settled solids, then scrapes the walls, baffles, and inlet/outlet tees before the trap is refilled and checked for flow. The trap returns to full working capacity.

A skim vacuums the grease cap off the top and leaves everything else. It’s faster and it’s why some quotes look suspiciously low. The solids stay, compact, and permanently eat capacity, until the day the trap backs up into the dish pit mid-service and the “cheap” vendor’s savings are spent several times over on an emergency restoration visit and a mopped-out kitchen.

Ask us, or anyone quoting, to state on the quote that the service is a full pump-out with the plumbing checked on the way out, and to note it on the manifest and visit notes, so you’re never guessing what you paid for.

What a typical service visit looks like

1. Scheduled window, during a delivery lull or after close, not mid-rush. Trap work has an odor while the lid is open, so we time it when no customers are in the room.
2. Full evacuation: grease cap, liquid, and solids, out.
3. Scrape and inspect: walls, baffles, and tees cleaned; the technician checks line flow and flags anything upstream or downstream that looks wrong (slow floor drain, failing tee) before it becomes a backup.
4. Refill and close. The trap goes back into service immediately.
5. Manifest, waste hauled to city-approved discharge points, disposal manifest left for your file. If the city or your landlord ever asks how the trap is maintained, the manifests are the answer.

Pricing

These are typical market ranges; trap size, access, and condition drive the number. The pricing page lays out the drivers, and it is worth asking whether a contractor charges for the first walkthrough. If your kitchen has an in-ground interceptor out back instead of an indoor trap, common in newer builds in West Fargo and Horace, that’s a truck-and-hose job covered on its own page.

We can carry both sides of your grease compliance: trap and interceptor pumping on the sewer side, hood, duct, and fan cleaning on the fire side, one schedule and one contact for all of it. Call (701) 765-5584 or send the form, and if your drains are already slow, mention it so we treat the request as urgent.