A hydro jetter (water jetter) is a high-pressure pump feeding a flexible hose with a specialised nozzle. Jets firing backwards propel the hose along the drain and blast the pipe walls; forward-facing jets or mechanical heads cut through the blockage itself.
What jetting does better than a basic drain machine:
- Cleans the full pipe diameter. An electric eel (drill-powered auger) bores a hole through a blockage — often leaving much of the material on the walls to regrow or rebuild. A jetter scours the walls back to bare pipe.
- Cuts roots properly. With a root-cutting or chain head, jetters remove root masses rather than punching through them.
- Strips grease. The only realistic way to remove an established fat layer from a kitchen line is jetting it off the walls.
- Flushes debris out of the line rather than leaving cuttings behind.
- Prepares pipes for relining, which requires a clean wall for the liner to bond.
When a jetter is the right call: root intrusion, greasy kitchen and café lines, silted stormwater, long runs, and any blockage that a basic machine has "cleared" repeatedly but keeps returning.
Is it safe for pipes? In professional hands, yes — pressure and nozzle choice are matched to the pipe material and condition. On badly damaged pipe, the operator should camera first or jet cautiously; occasionally jetting reveals (rather than causes) a collapse that was already imminent. That is another argument for pairing jetting with a camera inspection: clear it, then see exactly what state the pipe is really in.