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.
- Original labelled product
- Label-specified gloves and eye protection
- Ventilation
- Measured dose and safe storage
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
Identify the fixture and blockage pattern
- 2
Read the whole label before opening
- 3
Prepare ventilation and protection
- 4
Apply only the stated dose and contact time
- 5
Do not add another product if it fails
Important safety point
Never mix drain cleaners or combine them with bleach, acids, ammonia or other household cleaners.