Before you start
Confirm that this method matches both the fixture and likely obstruction. Prepare for spills, protect the surrounding surface and keep the work area away from children and pets.
- Rated jetting hose and nozzle
- Compatible pressure washer
- Waterproof face, hand and body protection
- Backflow and runoff control
What a successful result looks like
Normal flow should return without leakage, gurgling or backup elsewhere. If the result is partial or short-lived, stop repeating the same process and investigate farther along the line.
- Stable water level
- Normal drainage speed
- No leak at disturbed joints
- No symptom in a connected fixture
Step-by-step approach
- 1
Confirm equipment and pipe compatibility
- 2
Position the hose before pressurising
- 3
Advance in short controlled stages
- 4
Withdraw gradually to wash debris back
- 5
Inspect the runoff and verify flow
Important safety point
High-pressure water can penetrate skin and spread contaminated material. Never point a jet at a person or run a hose through an unknown line.