Plumbing · Plumbing
Fix Low Water Pressure at a Tap
Repair summary
If only one tap has weak flow, the aerator is almost certainly clogged with sediment. Unscrew it from the spout, soak in vinegar, brush out the mesh and refit. Whole-house pressure issues are a different job — call a plumber.
Likely issue
Sediment-blocked aerator
DIY difficulty
1/5
Estimated DIY cost
$0–$10
Estimated tradie cost
$120–$200
Tools required
- Pliers
- Cloth
- Old toothbrush
Materials required
Step-by-step instructions
- Unscrew the aerator from the end of the spout by hand or with pliers wrapped in cloth.
- If only one tap has weak flow, the aerator is almost certainly clogged with sediment. Unscrew it from the spout, soak in vinegar, brush out the mesh and refit. Whole-house pressure issues are a different job — call a plumber.
Safety warnings
If pressure is low at every tap, do not adjust the mains pressure-limiting valve yourself — book a licensed plumber.
When to call a tradie
Call a licensed tradie if the work is outside the scope of this guide, involves regulated trades (electrical, gas, structural, waterproofing), or if you discover hidden damage. A professional will typically charge $120–$200.
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