Overview
- Most weak flow starts at a single fixture from limescale, clogged filters, or half‑closed valves rather than a failing supply line.
- Begin by testing several taps to see if the problem is local, then clean the aerator or showerhead by soaking it in white vinegar and brushing off mineral buildup.
- Verify every stop valve near sinks, toilets, heaters, and the main supply is fully open, and do not force any valve that feels stuck or corroded.
- For a stronger shower, avoid running the washing machine or other taps at the same time and remove the built‑in flow limiter if your showerhead includes one.
- Call a plumber if pressure drops across the whole home, begins suddenly, or comes with damp spots, pipe noises, or big temperature swings, and avoid DIY moves like raising a water tank or altering piping.