Commercial Hydro-Jetting — Davidsonville, MD
A restaurant in Davidsonville had a grease trap that was backing up monthly. We hydro-jetted the grease trap outlet line and the main drain to the street — clearing 80 feet of grease accumulation that had built up over years.
The Problem
A restaurant in Davidsonville called us after their floor drains were backing up during the dinner rush. They had a grease trap that was being pumped monthly, but the drain line from the trap to the street was still backing up. The previous plumber had snaked the line twice with no lasting results.
Our Diagnosis
We ran a camera from the grease trap outlet to the street connection — approximately 80 feet. The entire run was coated with a 1–2 inch layer of hardened grease. The pipe was reduced to less than 50% of its original diameter. The grease trap was functioning correctly, but the outlet line had never been properly cleaned.
The Repair Process
- 1Camera inspection from grease trap outlet to street
- 2Set up trailer-mounted hydro-jetting unit (4,000 PSI / 18 GPM)
- 3Ran rotating chain flail nozzle through entire 80-foot run
- 4Made 3 passes to fully remove hardened grease coating
- 5Re-ran camera to verify clean pipe walls
- 6Confirmed full flow capacity restored
- 7Recommended quarterly hydro-jetting maintenance schedule
The Outcome
Post-jetting camera showed completely clean pipe walls throughout the 80-foot run. No backups in the 3 months since service. The restaurant enrolled in a quarterly maintenance program.
Key Takeaway
Commercial drain lines serving restaurants and food service operations require regular hydro-jetting — not just grease trap pumping. The outlet line from the trap to the street accumulates grease over time and must be cleaned separately.
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