Direct answer
Mixer taps commonly leak from a cartridge, spout O-rings or flexible connectors. Cartridge dimensions and model compatibility matter; a visually similar part may not seal correctly.
What can cause the problem or change the decision
| Possible factor | What to record safely |
|---|---|
| Worn ceramic cartridge | Identify brand and model |
| O-ring failure at a swivel spout | Observe whether leak occurs open or closed |
| Loose or split flexible hose | Check visible hoses without twisting |
| Pressure or debris damaging components | Isolate only if the valve operates safely |
Safe checks before professional work
- Identify brand and model
- Observe whether leak occurs open or closed
- Check visible hoses without twisting
- Isolate only if the valve operates safely
Stop and get help
A split flexible connector can release water quickly and needs immediate isolation.
What information helps the next step
Timing
Note whether the symptom is constant, linked to rain, linked to a fixture or only at peak use.
Extent
List each affected outlet, room or inspection point without opening regulated components.
History
Keep previous invoices, camera footage, product model and renovation details.
Safety
State any gas smell, hot discharge, sewage, electrical proximity or structural movement immediately.
Frequently asked questions
Is this a complete DIY repair procedure?
No. It provides safe consumer observations and stops before regulated, hazardous or specialist work.
Which professional service matches this issue?
Start with Tap Repair: What the Service Covers. The actual diagnosis may identify a different work category.
How can I plan the cost?
Use Plumber Cost in Australia for sourced planning context, then compare written local quotes.