What it means
Common cleaning methods include hydraulic jetting, mechanical rodding, bucket machines, root cutting, and vacuum removal. The right method depends on pipe size, material, blockage type, access, and safety conditions.
What operators watch
- Cleaning can create downstream plugs if debris is not controlled.
- Jetting pressure and nozzle choice should fit the pipe and blockage.
- Records help set preventive maintenance frequencies.
Common exam traps
- Assuming all blockages should be handled with the same tool.
- Ignoring downstream manholes during cleaning.
- Forgetting traffic control and public safety.
Field example
A grease-prone restaurant area may need more frequent cleaning and coordination with pretreatment or code enforcement.
