13 December 2023 – 11:30

Sandton system update
Most Sandton systems are steadily recovering and are on an upwards trajectory. The daily mitigation strategies have yielded positive results and the system is looking healthy. Most of the reservoirs are supplying normally. Johannesburg Water will continue monitoring the systems. As a mitigation strategy the following reservoirs will be throttled to 90% overnight to retain water and build capacity. The overnight throttling is scheduled to begin at 21:00 and conclude in the morning at 04:00. Some areas may still encounter low water pressure while the system recovers.
• Illovo reservoir
• Bryanston reservoir
• Morningside reservoir

Rabie Ridge
The Rabie Ridge reservoir improved slightly overnight, but it is still experiencing high demand and low water levels. The reservoir is currently supplying at 30% while the tower remains on bypass mode. Poor pressure to no water can be expected in parts of the supply zone. Johannesburg Water is monitoring the system for improvements.

Alexander Park reservoir
The Alexander Park reservoir improved overnight and is supplying normally. However, there is high demand on the system. The outlet will be closed overnight to build capacity for the next day.

Eagles Nest reservoir
The Eagles Nest reservoir continues to be critically low due to increasing demand and poor supply pressure. Low pressure is expected in the supply zone, especially high-lying areas; however, the system has been reconfigured to boost supply.

Linden 1 reservoir and tower
Both the Linden 1 reservoir and tower improved and are supplying normally.

Soweto Systems
The Soweto systems remained stable overnight and throughout the day, however, they will be affected by overnight throttling (reducing pressure and flow). The bulk supply remains restricted as a Water Demand management strategy. The Zondi reservoir supply is currently at 60%, while the Power Park reservoir supply is at 50%. Areas fed by the Zondi reservoir, Doornkop reservoir and Power Park reservoir are affected by low pressure, while high-lying areas are affected by no water. Bramfischerville is supplying at 50%, and poor pressure to no water is expected most parts of the area. Customers in phases 7 and 9 will experience poor pressure to no water. Certain areas supplied by Protea Glen tower and direct feeds are experiencing poor pressure to no water.

Commando System
• Brixton reservoir: The reservoir is stable and is currently supplying normally.
• Brixton tower: The tower is stable and is currently supplying normally.
• Hursthill 1 and 2 reservoirs: Both reservoirs made slight gains overnight, however, the levels are low and poor pressure to no water is expected in the supply zones. The outlets to both reservoirs are fully opened. Hursthill 1 reservoir has been configured to boost supply while Hursthill reservoir will be closed overnight to build capacity for tomorrow.
• Crosby reservoir: The reservoir is low but supplying normally.
The following reservoirs will either be closed or throttled to 90% overnight to retain water and build capacity:
• Soweto: Freedom Park, Doornkop West, Power Park, Orlando East, and Zondi
• Commando: Brixton, Hursthill 2
• Crown Gardens
• Alexandra Park (closed)
• Midrand: Rabie Ridge, Grand Central, President Park, Erand, and Diepsloot
The Randjieslaagte and Berea reservoirs may be throttled overnight if necessary due to high demand.

Customers supplied by these reservoirs may experience poor pressure to no flow. Alternative water supply has been arranged through water tankers for the affected areas. Johannesburg Water continues to monitor the above systems.

Residents are requested to observe level-1 water restrictions which are implemented from 1 September to 31 March. These restrictions prohibit the use of hosepipes to water gardens, wash cars, clean driveways, as well as fill up swimming pools and water features between 06:00 and 18:00. Instead, the use of greywater is encouraged.

Ends
Issued by Johannesburg Water Communication and Marketing