Commercial Drain Jetting — North Beach, MD
A North Beach restaurant had slow floor drains and a grease trap that was backing up into the kitchen. We hydro jetted the main drain line and the grease trap outlet, clearing years of grease accumulation and restoring full flow.
The Problem
A restaurant in North Beach called with slow floor drains in the kitchen and a grease trap that was backing up. The grease trap was overflowing into the kitchen floor drain during busy service periods. The restaurant had been using enzyme treatments monthly, but the problem had been getting progressively worse over the past year. The health department had flagged the grease trap during a recent inspection.
Our Diagnosis
We ran a camera through the main drain line from the grease trap outlet to the street connection. The line had significant grease accumulation — in some sections, the effective pipe diameter had been reduced by 60–70% by hardened grease. The grease trap itself was functioning but the outlet line was nearly blocked, preventing the trap from draining properly. Enzyme treatments were not sufficient to break down the hardened grease buildup.
The Repair Process
- 1Camera inspection confirmed grease accumulation in main drain line
- 2Set up hydro jetting equipment — 4,000 PSI, 18 GPM flow rate
- 3Jetted the grease trap outlet line first to restore trap drainage
- 4Jetted the main drain line from cleanout to street connection — 85 feet total
- 5Used a rotating nozzle to cut through hardened grease on pipe walls
- 6Camera inspection after jetting confirmed full pipe diameter restored
- 7Recommended quarterly jetting schedule and proper grease trap pumping frequency
The Outcome
Full flow restored to all kitchen floor drains. Grease trap now draining properly between pump-outs. The restaurant passed their follow-up health department inspection. The owner enrolled in a quarterly maintenance program. No backups in the 13 months since service.
Key Takeaway
Enzyme treatments maintain clean drains but cannot clear hardened grease buildup. Once grease has accumulated to the point of causing backups, hydro jetting is the only effective solution. Quarterly jetting prevents the buildup from reaching that point.
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