Cape Town water warning: These areas face supply disruptions this week
· The South African
Residents across parts of Cape Town are being urged to prepare for planned water supply maintenance and zero-pressure tests taking place between 18 and 23 August 2026.
The City of Cape Town has scheduled several maintenance operations and zero-pressure tests across the city, with affected residents advised to store water in advance.
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The work will take place in many areas, with some interruptions scheduled during the day and others overnight.
Cape Town areas affected by water maintenance
18 August: Selborne Slot and surrounding areasWater maintenance is scheduled from 10:00 to 16:00 on Tuesday, 18 August in:
- Selborne Slot
- Oude Westhof
- Kanonberg
- Kanonberg Lifestyle Estate
- Van Riebeeckshof
- Welgemoed
The same areas will also be affected by another maintenance operation on 20 August from 9:00 to 17:00.
21 to 22 August: Steenbras and surrounding areasAn overnight maintenance operation is scheduled from 19:00 on Friday, 21 August, until 7:00 on Saturday, 22 August.
Areas that could be affected include:
- Steenbras River Mouth
- Kogel Bay
- Gordons Bay
- Strand
- Sir Lowry’s Pass Village
- Macassar
- Firgrove
- Ithemba Labs
- Eerste River East
- Possibly areas in between
A second overnight maintenance period will take place from 19:00 on Saturday, 22 August, until 7:00 on Sunday, 23 August, affecting the same areas and potentially surrounding areas.
12 to 24 August: RSE Tunnel maintenanceA separate maintenance shutdown involving the Department of Water and Sanitation (DWS) RSE Tunnel is scheduled from 12 to 24 August.
Residents in areas supplied by the affected system should monitor City of Cape Town updates for any changes to their water supply.
Zero-pressure tests planned
The City will also conduct zero-pressure tests, or ZPTs, in several areas.
On 18 August from 9:00 to 16:00, testing is scheduled in:
- Diep River
- Plumstead
- The Vines
- Deurdrif
- Barbarossa
Zero-pressure tests will also take place in Camps Bay, Clifton, Gardens, Oranjezicht and Tamboerskloof from 10:00 to 17:00 on 18 August.
The same areas will undergo further testing on 19 August from 10:00 to 17:00.
Residents in these areas should be prepared for possible water supply interruptions or pressure changes while the testing is carried out.
Residents urged to store water
The City is advising residents to prepare for the scheduled work by storing water ahead of time in clean, sealed containers for domestic use.
Residents should ensure they have enough water available for essential needs such as drinking, cooking, hygiene and flushing toilets during periods when supply may be affected.
The City also warns that water may appear discoloured or milky for a short period after supply has been restored.
This can happen because of trapped air in the pipes. If the water is left to stand in a glass, the City says it should become clear again.
Residents can follow updates from the City via @CityofCTAlerts on X.