High-volume businesses need professional hydrojetting because grease and buildup form on pipe walls faster than snaking or in-house cleaning can remove them, and in Michigan a drain failure is more than an inconvenience. A sewage backup is classed as an imminent health hazard for food establishments, which means the operator must stop operating and notify the regulator. Professional commercial hydro jetting works from a camera diagnosis, clears the full pipe interior at commercial pressure, and leaves you with documentation. This guide explains why that matters for restaurants, hotels, multi-tenant buildings, and other busy properties.
Why Commercial Drains Clog Faster
Grease is the main culprit. In its fact sheet on controlling fats, oils, and grease, EPA cites its Report to Congress finding that grease from restaurants, homes, and industrial sources is the most common cause, at 47 percent, of reported sewer blockages, because grease solidifies, reduces conveyance capacity, and blocks flow. EPA also says the collected grease trap waste and uncollected grease reaching treatment plants runs from 800 to 17,000 pounds per year per restaurant.
Commercial lines add their own pressures. According to Bison’s commercial page, commercial drains run 4 to 12 inches in diameter, compared with 1.5 to 4 inches in a home, and they carry heavier loads over longer runs. Floor drains, branch lines, and the main lateral all collect buildup, and a missed year shows up as a thick layer around the full pipe wall.
In Michigan, a Backup Can Stop Your Business
The Michigan Department of Agriculture and Rural Development (MDARD) publishes an imminent health hazard guide for regulators, developed jointly with the Detroit, Macomb County, and Oakland County health departments and the Michigan Restaurant Association. It lists sewage backup among the Food Code’s examples of imminent health hazards. When one affects a single food establishment, the guide says the operator must immediately discontinue operation and notify the regulatory authority. The regulator then assesses the hazard, may allow operations to continue in areas that aren’t affected, and may direct the operator to follow an Emergency Action Plan.
For a restaurant, that can mean closing mid-service. The guide dates to 2004, so confirm the current rules with your local health department, but the underlying point is simple: a drain that backs up is a compliance event, not just a plumbing problem. A documented maintenance schedule is the best way to avoid ever finding out.
What Local FOG Rules Mean for Your Business
Federal rules push this down to the local level. EPA says the National Pretreatment Program prohibits solid or viscous pollutants in amounts that cause obstruction in a sewer system, and that a growing number of local authorities enforce stricter controls on food service establishments. Those can include numeric limits on oil and grease (typically 50 to 450 mg/L, with 100 mg/L the most commonly reported), required grease interceptors, inspections, pumping requirements, and penalties.
EPA’s examples show how far enforcement can go: New York City instituted a $1,000-per-day fine after finding a 73 percent non-compliance rate among restaurants, and some utilities add monthly strong-waste surcharges of $100 to $700 or more. Those are national examples, not Michigan rules. Your local sewer authority and health department set the requirements that apply to you, so ask what they are before an inspector does.
Why Snaking and DIY Cleaning Don’t Hold Up
A snake clears a path through a blockage. Bison’s guide to hydrojetting versus snaking explains the limitation: a snake punches a hole through the clog but rarely removes all the residue from the pipe walls, and that residue becomes the foundation for the next clog. Hydrojetting instead scours the entire interior of the pipe. The same guide notes that consumer pressure washers operate at a fraction of the pressure needed and aren’t the same as professional jetting machines, and that jetting should be done by a licensed plumber after a camera inspection.
| Snaking or DIY Cleaning | Professional Commercial Hydrojetting | |
| What it does | Punches a passage through the blockage; residue can stay on the pipe walls | Scours the full pipe interior with high-pressure water |
| Pipe size | Suited to short, small lines and single-fixture clogs | Built for 4 to 12 inch commercial lines at 4,000 to 5,000+ PSI, per Bison’s commercial page |
| Diagnosis | Often done without looking inside the pipe | Camera first, so a collapsed or cracked line isn’t made worse |
| Records | Rarely any | Before-and-after footage and a service report |
| Risk | Consumer pressure washers aren’t the same as professional jetting machines | High pressure needs training, the right nozzle, and a camera-confirmed pipe |
What Professional Commercial Hydrojetting Involves
Bison’s commercial process, as described on its service page, runs in four steps:
- Site assessment. For new accounts, Bison maps the drain lines, identifies grease interceptor locations, confirms pipe diameters, and assesses how much buildup is present. That sets the schedule and the baseline.
- Camera confirmation. A sewer camera inspection confirms where the buildup is and whether any structural problem would be made worse by high pressure.
- High-pressure jetting. Equipment at 4,000 to 5,000+ PSI runs each line from its access point to the main lateral, using a FOG-cutting nozzle on kitchen lines. Floor drains, branch lines, and the main lateral are cleared in sequence.
- Verification and documentation. A post-jetting camera pass confirms each line is clear, and Bison provides the pre- and post-service footage and a service report for your compliance records.
When jetting isn’t the answer: If the camera shows a collapse or structural break instead of buildup, the recommendation changes. Jetting a failed commercial lateral makes the shutdown longer, not shorter, and a repair is the next step.