Low water pressure is one of the most common complaints we hear in Sandton, Midrand and Fourways. The cause is rarely "the council" — it's almost always something inside your own property that a plumber can correct in a single visit.
1. Partially closed stopcock
The most common cause we find. A previous plumber, gardener or tenant has half-closed the main stopcock at the boundary or in the house. Open it fully (anti-clockwise) and pressure often jumps immediately.
2. Scaled-up shower heads and tap aerators
Joburg water leaves limescale. A shower head clogged with scale halves your flow even if the supply is fine. Soak in white vinegar overnight — usually fixes it without buying anything.
3. Failing pressure-control valve at the geyser
A failing PCV restricts hot water flow. Symptom: hot pressure is much weaker than cold pressure on the same mixer. R450–R750 part, replaced in under an hour.
4. Clogged geyser inlet strainer
The mesh filter on the geyser cold inlet catches grit from the municipal supply and slowly chokes flow. Easy clean during a service.
5. Concealed leak bleeding pressure
If pressure has steadily dropped on every fixture in the house, you may have a hidden leak. Read our hidden water leak signs guide and book a leak detection if you're seeing the indicators.
6. Polycop supply line collapsing
Older polycop main supply pipes from the meter to the house can kink or partially collapse where they pass under driveways. A pressure test at the meter vs at the first internal tap shows the loss instantly.
7. Genuinely low municipal supply
Some Midrand and Fourways estates do get genuinely low mains pressure, especially during peak evening use. The fix is a pressure pump and small accumulator tank — typically R8,500–R14,000 installed with a Plumbing COC.
Want your pressure problem properly diagnosed (not guessed)? Phone 082 886 9119 — we test with proper gauges and quote the real fix.