Your street may differ: each report covers a reservoir or tower and the area it feeds, and higher streets lose water first. What JW's words mean
Day by day
In 2026 so far: 7 days short of water for Bryanston Tower, from 189 days with a report; 3 days for Kensington B Reservoir, from 190. A typical supply in the city, the median one (half had fewer), had 4 days.
Each square is a day, as JW reported it for a supply: a reservoir or tower that JW reports on. The number at the right is the month's days short of water.
In 2026 so far, JW reported at least one of Vandia Grove's 2 supplies short of water on 10 days
3 March 2025 to 29 September 2026, from 494 days with a JW report.
Kensington B Reservoir
In 2026 so far: 3 days short of water, from 190 days with a JW report.
11531short
2025
Mar4
Apr1
May0
Jun0
Jul0
AugNo JW boards, Aug 2025 to Jan 2026
2026
Feb0
Mar3
Apr0
May0
Jun0
Jul0
Aug0
Sep0
Bryanston Tower
In 2026 so far: 7 days short of water, from 189 days with a JW report.
11531short
2025
MarNo JW boards, Mar to Apr
May0
Jun0
Jul5
AugNo JW boards, Aug 2025 to Jan 2026
2026
Feb0
Mar0
Apr4
May0
Jun2
Jul0
Aug1
Sep0
water as normal
supplying fairly
JW warned
low, or weak in places
short of water
critically low
shut for the night
no JW report
still filling in
JW's reported status of the reservoir or tower, not measured water at taps. Boards from March 2025.
Source: Johannesburg Water's System Update boards and notices, read by us. How this record is made.
Cite this figure
watersearch (2026). “In 2026 so far, JW reported at least one of Vandia Grove's 2 supplies short of water on 10 days”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/suburb/vandia-grove#fig-year
The data as a table
Supply
Month
Days reported
Days in record
Adequate or fair
Poor pressure in places, or low
Warning: no water may occur
Poor pressure to no water
Critically low
Overnight closure
Kensington B Reservoir
March 2025
18
29
14
0
0
0
4
0
Kensington B Reservoir
April 2025
22
30
21
0
0
0
1
0
Kensington B Reservoir
May 2025
16
31
15
0
0
0
0
1
Kensington B Reservoir
June 2025
1
30
1
0
0
0
0
0
Kensington B Reservoir
July 2025
6
31
4
0
0
0
0
2
Kensington B Reservoir
August 2025
0
31
0
0
0
0
0
0
Kensington B Reservoir
September 2025
0
30
0
0
0
0
0
0
Kensington B Reservoir
October 2025
0
31
0
0
0
0
0
0
Kensington B Reservoir
November 2025
0
30
0
0
0
0
0
0
Kensington B Reservoir
December 2025
0
31
0
0
0
0
0
0
Kensington B Reservoir
January 2026
0
31
0
0
0
0
0
0
Kensington B Reservoir
February 2026
7
28
7
0
0
0
0
0
Kensington B Reservoir
March 2026
21
31
15
3
0
2
1
0
Kensington B Reservoir
April 2026
30
30
30
0
0
0
0
0
Kensington B Reservoir
May 2026
31
31
29
0
0
0
0
2
Kensington B Reservoir
June 2026
30
30
30
0
0
0
0
0
Kensington B Reservoir
July 2026
30
31
30
0
0
0
0
0
Kensington B Reservoir
August 2026
21
31
21
0
0
0
0
0
Kensington B Reservoir
September 2026
20
29
20
0
0
0
0
0
Bryanston Tower
March 2025
0
29
0
0
0
0
0
0
Bryanston Tower
April 2025
0
30
0
0
0
0
0
0
Bryanston Tower
May 2025
1
31
1
0
0
0
0
0
Bryanston Tower
June 2025
28
30
28
0
0
0
0
0
Bryanston Tower
July 2025
23
31
15
2
0
5
0
1
Bryanston Tower
August 2025
0
31
0
0
0
0
0
0
Bryanston Tower
September 2025
0
30
0
0
0
0
0
0
Bryanston Tower
October 2025
0
31
0
0
0
0
0
0
Bryanston Tower
November 2025
0
30
0
0
0
0
0
0
Bryanston Tower
December 2025
0
31
0
0
0
0
0
0
Bryanston Tower
January 2026
0
31
0
0
0
0
0
0
Bryanston Tower
February 2026
7
28
7
0
0
0
0
0
Bryanston Tower
March 2026
21
31
20
0
0
0
0
1
Bryanston Tower
April 2026
30
30
25
0
0
4
0
1
Bryanston Tower
May 2026
31
31
29
0
0
0
0
2
Bryanston Tower
June 2026
30
30
28
0
0
2
0
0
Bryanston Tower
July 2026
30
31
30
0
0
0
0
0
Bryanston Tower
August 2026
20
31
19
0
0
1
0
0
Bryanston Tower
September 2026
20
29
18
0
1
0
0
1
A day counts as short of water when JW's worst report for it that day was “poor pressure to no water” or “critically low”, as happening or expected (expected most often means higher streets). A warning that it may occur does not count.
In short
The latest JW report on this site is from 29 September 2026; the site last read JW's website on 1 October. Bryanston Tower and Kensington B Reservoir were supplying fairly or better. This year Bryanston Tower was short of water on 7 of the 189 days JW reported it. A typical reservoir or tower in the city had 4 such days. On Bryanston Tower, half of its last 8 outages lasted at least 25 hours; the longest since March 2025 lasted at least 40 hours. No JW notice we have read names Bryanston Tower.
Listed on JW's pages, as Vandia Grove, Vandia Grove Ext.1, Vandia Grove Ext.2. Source 1 ↗Source 2 ↗
Outages
JW reported 9 outages on Vandia Grove's supplies since March 2025. The longest lasted 46 hours. Every outage, with how long it lasted: Bryanston Tower and Kensington B Reservoir.
JW's end dates
JW posted 7 notices with an end date that list a suburb or system Vandia Grove's supplies feed. Most name only suburbs, not the reservoir or tower, so the summary at the top uses only a notice that names the supply itself. By the stated time JW's boards showed the water back on none of the 4 end times that have passed. Each end date against what happened: Bryanston Tower and Kensington B Reservoir.
Under strain
In 2026 so far, Vandia Grove had 14 days under strain: days when JW reported any of its supplies low or worse, or warned that higher-lying areas may lose water. This is a wider count than days short of water.
The network is linked. Vandia Grove draws on all its supplies at once, and when one runs low the others carry more. At such times JW's boards sometimes warn of “poor pressure to no water in higher-lying areas”: under strain, higher streets lose water first. JW does not say which streets those are.
What JW's boards cannot tell you
JW's boards report reservoirs and towers, so some things are not in this record:
Whether water reaches your street or your tap.
Which streets lose water first: JW warns of higher-lying areas but does not name the streets.
Why a supply ran low, unless a JW notice gives a reason.
Pipe bursts, tankers and valve work, which are not on the boards.