In response to the worst drought in the city’s history, the Water and Sanitation Department is expediting the roll-out of pressure management technology to various parts of the water supply network. We thank residents for their cooperation in reducing water consumption thus far, and regret any inconvenience this will cause. Read more below:
The City of Cape Town has identified many areas across the city where the installation of pressure management technology could positively impact water consumption. Contractors have been brought in to speed up the programme.
In order for the pressure management technology to function effectively, it is necessary for the City to determine where water is flowing into a supply zone. This is done by means of a zero-pressure test, where all known inflows into a supply zone are closed with the aim of lowering water pressure to zero. Should water pressure persist within the zone, it tells us that there is another inflow which is not shown on the schematics. During this testing, water supply to properties within the affected supply zone will be disrupted.
Over the coming week, zero-pressure tests will affect water supply in the following areas:
· The Dagbreeek/Robinson zone bounded by Kenridge Avenue to the north, Durbanville Avenue to the east, Tygervalley Road to the west and Door De Kraal Avenue to the south. The work is scheduled to take place on Tuesday, 15 May 2018, from 20:00 to 02:00.
· The Gordon’s Bay/Onverwacht area bounded by Octupus Road to the north, St Croix Road to the west, Dennehof Drive to the east and Sir Lowry’s Pass Road to the south. The work is scheduled to take place on Tuesday,15 May 2018, from 20:00 to 04:00.
· The Kenridge zone bounded by Eversdal Road to the north, Mountain View Road to the east, Tygervalley Road to the west and Bill Buizendenhout Avenue to the south. The work is scheduled to take place on Wednesday, 16 May 2018, from 20:00 to 02:00.
· The Langeberg Zone which is bounded by N1 to the north, Kraaifontein Industria to the east, Okavanga Park to the west and Old Paarl and Voortrekker Roads to the south. The work is scheduled to take place on Saturday, 19 May 2018, from 10:00 to 16:00.
Other areas will be informed of supply disruptions in due course.
Not only does pressure management generally lower consumption by reducing the rate at which water flows to properties, it also reduces leaks and pipe bursts by better ensuring that pressure remains within levels that the pipework can tolerate, and reduces the rate of loss from leaks and bursts.
At all times careful consideration will be given to ensure minimal disruption to the water supply in the affected areas. The City regrets any inconvenience caused. These opeartions are part of our efforts to preserve available water and give our dams the best chance at significant recovery over the coming rainy season.