How jetting works
A jetter pushes water at high pressure through a hose with a nozzle on the end. Rear-facing jets pull the hose forward into the pipe while other jets spray the walls. As the hose is drawn back, it scrubs grease, sludge and scale off the pipe and flushes it downstream. Different nozzles are used for grease, roots or packed debris.
For a commercial kitchen, the difference from a cable machine is coverage. A cable clears a path through a clog; a jetter cleans the whole circumference of the pipe. That is why lines that keep closing up after snaking often stay open much longer after a proper jetting.
Is jetting the right call?
- IfA kitchen line clogs again within weeks of being snakedJetting is usually the next step, often with a camera inspection afterward.
- IfYou want routine maintenance on a busy grease lineScheduled jetting is common. Base the interval on how quickly grease builds up.
- IfThe pipe is old cast iron or clay and has never been inspectedAsk for a camera inspection first. Badly cracked or offset pipe can be damaged by high pressure.
- IfRoots are in the sewer lateralA root-cutting nozzle or cutter may clear them, but roots return. Discuss repair options for the damaged joint.
- IfA single object, like a utensil, is stuckA cable or retrieval tool may be better than jetting.
What to expect on jetting day
- Schedule around service.Most kitchens book jetting before opening or after close. Drains on that line cannot be used during the work.
- Access.The crew needs a clean-out, a water supply and room for the hose. Truck-mounted jetters may need a parking spot close to the building.
- Protect the space.Clear the area around clean-outs and floor sinks. Spray and debris can come back up an open drain if a line is badly blocked.
- Jetting and flushing.The line is cleaned in sections from the clean-out toward the interceptor or main.
- Verify.Ask for a test under load, such as a dish machine dump, and a camera pass if the history suggests damage.
What affects the cost of jetting
| Factor | Why it matters |
|---|---|
| Number and location of clean-outs | Poor access can mean more setup time or adding a clean-out. |
| Line length and diameter | Longer and larger lines take more time and water. |
| How heavy the build-up is | Hardened grease takes more passes than soft sludge. |
| Camera inspection | Often a separate item; worth it on older pipe or repeat problems. |
| Scheduling | After-hours or same-day work may be billed differently. Ask first. |
Questions to ask before jetting
- Have you looked at the condition of this pipe, or should we inspect it first?
- Which nozzle and approach will you use for grease?
- Where will the loosened grease go, and is the interceptor ready to receive it?
- Will you run a camera afterward and share the footage?
- What maintenance interval do you recommend for our kitchen?
Common questions
Can hydro jetting damage pipes?
On pipe in good condition it is generally safe when done properly. On pipe that is badly cracked, offset or corroded, high pressure can make things worse, which is why a camera inspection first is often recommended for older Fullerton buildings.
How long does jetting a kitchen line take?
It depends on the length of the line, access and how much grease is in it. Ask the plumber for an estimate of the shutdown window so you can plan prep and service.
Should the interceptor be pumped before jetting?
Often, yes. Jetting flushes grease toward the interceptor, and a full tank cannot hold it. Coordinate the two if both are due.
General information for Fullerton, not a quote or professional advice. In an emergency, call 911.