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: 4 days short of water for Erand Reservoir, from 189 days with a report; 1 day for Erand Tower, from 189; 0 days for Marlboro Reservoir, from 189. 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 Barbeque Downs's 3 supplies short of water on 5 days
3 March 2025 to 29 September 2026, from 764 days with a JW report.
Marlboro Reservoir
In 2026 so far: 0 days short of water, from 189 days with a JW report.
11531short
2025
Mar0
Apr0
May0
Jun0
Jul3
AugNo JW boards, Aug 2025 to Jan 2026
2026
Feb0
Mar0
Apr0
May0
Jun0
Jul0
Aug0
Sep0
Erand Tower
In 2026 so far: 1 day short of water, from 189 days with a JW report.
11531short
2025
MarNo JW boards, Mar to May
Jun0
Jul0
AugNo JW boards, Aug 2025 to Jan 2026
2026
Feb1
Mar0
Apr0
May0
Jun0
Jul0
Aug0
Sep0
Erand Reservoir
In 2026 so far: 4 days short of water, from 189 days with a JW report.
11531short
2025
MarNo JW boards, Mar to May
Jun3
Jul0
AugNo JW boards, Aug 2025 to Jan 2026
2026
Feb2
Mar1
Apr0
May0
Jun1
Jul0
Aug0
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 Barbeque Downs's 3 supplies short of water on 5 days”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/suburb/barbeque-downs#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
Marlboro Reservoir
March 2025
18
29
18
0
0
0
0
0
Marlboro Reservoir
April 2025
13
30
13
0
0
0
0
0
Marlboro Reservoir
May 2025
11
31
11
0
0
0
0
0
Marlboro Reservoir
June 2025
28
30
28
0
0
0
0
0
Marlboro Reservoir
July 2025
23
31
16
3
0
1
2
1
Marlboro Reservoir
August 2025
0
31
0
0
0
0
0
0
Marlboro Reservoir
September 2025
0
30
0
0
0
0
0
0
Marlboro Reservoir
October 2025
0
31
0
0
0
0
0
0
Marlboro Reservoir
November 2025
0
30
0
0
0
0
0
0
Marlboro Reservoir
December 2025
0
31
0
0
0
0
0
0
Marlboro Reservoir
January 2026
0
31
0
0
0
0
0
0
Marlboro Reservoir
February 2026
7
28
7
0
0
0
0
0
Marlboro Reservoir
March 2026
21
31
19
2
0
0
0
0
Marlboro Reservoir
April 2026
30
30
30
0
0
0
0
0
Marlboro Reservoir
May 2026
31
31
29
2
0
0
0
0
Marlboro Reservoir
June 2026
30
30
30
0
0
0
0
0
Marlboro Reservoir
July 2026
30
31
30
0
0
0
0
0
Marlboro Reservoir
August 2026
20
31
20
0
0
0
0
0
Marlboro Reservoir
September 2026
20
29
20
0
0
0
0
0
Erand Tower
March 2025
0
29
0
0
0
0
0
0
Erand Tower
April 2025
0
30
0
0
0
0
0
0
Erand Tower
May 2025
0
31
0
0
0
0
0
0
Erand Tower
June 2025
28
30
27
1
0
0
0
0
Erand Tower
July 2025
24
31
24
0
0
0
0
0
Erand Tower
August 2025
0
31
0
0
0
0
0
0
Erand Tower
September 2025
0
30
0
0
0
0
0
0
Erand Tower
October 2025
0
31
0
0
0
0
0
0
Erand Tower
November 2025
0
30
0
0
0
0
0
0
Erand Tower
December 2025
0
31
0
0
0
0
0
0
Erand Tower
January 2026
0
31
0
0
0
0
0
0
Erand Tower
February 2026
7
28
3
3
0
1
0
0
Erand Tower
March 2026
20
31
19
0
1
0
0
0
Erand Tower
April 2026
30
30
30
0
0
0
0
0
Erand Tower
May 2026
30
31
30
0
0
0
0
0
Erand Tower
June 2026
30
30
29
1
0
0
0
0
Erand Tower
July 2026
31
31
31
0
0
0
0
0
Erand Tower
August 2026
21
31
21
0
0
0
0
0
Erand Tower
September 2026
20
29
20
0
0
0
0
0
Erand Reservoir
March 2025
0
29
0
0
0
0
0
0
Erand Reservoir
April 2025
0
30
0
0
0
0
0
0
Erand Reservoir
May 2025
0
31
0
0
0
0
0
0
Erand Reservoir
June 2025
28
30
25
0
0
0
3
0
Erand Reservoir
July 2025
24
31
24
0
0
0
0
0
Erand Reservoir
August 2025
0
31
0
0
0
0
0
0
Erand Reservoir
September 2025
0
30
0
0
0
0
0
0
Erand Reservoir
October 2025
0
31
0
0
0
0
0
0
Erand Reservoir
November 2025
0
30
0
0
0
0
0
0
Erand Reservoir
December 2025
0
31
0
0
0
0
0
0
Erand Reservoir
January 2026
0
31
0
0
0
0
0
0
Erand Reservoir
February 2026
7
28
1
4
0
0
2
0
Erand Reservoir
March 2026
20
31
19
0
0
1
0
0
Erand Reservoir
April 2026
30
30
30
0
0
0
0
0
Erand Reservoir
May 2026
30
31
29
0
1
0
0
0
Erand Reservoir
June 2026
30
30
23
5
1
0
1
0
Erand Reservoir
July 2026
31
31
31
0
0
0
0
0
Erand Reservoir
August 2026
21
31
21
0
0
0
0
0
Erand Reservoir
September 2026
20
29
19
1
0
0
0
0
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. Erand Reservoir was low. Erand Tower and Marlboro Reservoir were supplying fairly or better. JW reported Erand Reservoir, Erand Tower and Marlboro Reservoir short of water on 4, 1 and 0 days this year. A typical reservoir or tower in the city had 4 such days. On Erand Reservoir, half of its last 6 outages were over within 23 hours; the longest since March 2025 lasted 2.1 days.
“On bypass” is JW's term. When JW repaired Hursthill 2 Reservoir from December 2025, it put the reservoir on bypass so that teams could work safely inside, and customers still received water; the news reports said this could bring periods of low pressure or no water (EWN ↗, The Citizen ↗). A reservoir or tower on bypass does not count as back when this page checks JW's end dates.
Listed on JW's pages, as Barbeque Downs Ext.38, Barbeque Downs Ext.9. Source 1 ↗Source 2 ↗
Outages
JW reported 9 outages on Barbeque Downs's supplies since March 2025. The longest lasted 2.1 days. Every outage, with how long it lasted: Erand Reservoir, Erand Tower and Marlboro Reservoir.
JW's end dates
JW posted 31 notices with an end date that list a suburb or system Barbeque Downs'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 41 end times that have passed. Each end date against what happened: Erand Reservoir, Erand Tower and Marlboro Reservoir.
Under strain
In 2026 so far, Barbeque Downs 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. Barbeque Downs 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.