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: 1 day short of water for Linbro Park Direct Feed, from 189 days with a report; 0 days for Marlboro Direct Feed, 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 Kelvin's 2 supplies short of water on 1 day
3 March 2025 to 29 September 2026, from 482 days with a JW report.
Marlboro Direct Feed
In 2026 so far: 0 days short of water, from 189 days with a JW report.
11531short
2025
MarNo JW boards, Mar to Apr
May0
Jun0
Jul3
AugNo JW boards, Aug 2025 to Jan 2026
2026
Feb0
Mar0
Apr0
May0
Jun0
Jul0
Aug0
Sep0
Linbro Park Direct Feed
In 2026 so far: 1 day short of water, from 189 days with a JW report.
11531short
2025
MarNo JW boards, Mar to Apr
May0
Jun0
Jul2
AugNo JW boards, Aug 2025 to Jan 2026
2026
Feb0
Mar0
Apr0
May1
Jun0
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 Kelvin's 2 supplies short of water on 1 day”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/suburb/kelvin#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 Direct Feed
March 2025
0
29
0
0
0
0
0
0
Marlboro Direct Feed
April 2025
0
30
0
0
0
0
0
0
Marlboro Direct Feed
May 2025
1
31
1
0
0
0
0
0
Marlboro Direct Feed
June 2025
28
30
27
0
0
0
0
1
Marlboro Direct Feed
July 2025
23
31
13
7
0
3
0
0
Marlboro Direct Feed
August 2025
0
31
0
0
0
0
0
0
Marlboro Direct Feed
September 2025
0
30
0
0
0
0
0
0
Marlboro Direct Feed
October 2025
0
31
0
0
0
0
0
0
Marlboro Direct Feed
November 2025
0
30
0
0
0
0
0
0
Marlboro Direct Feed
December 2025
0
31
0
0
0
0
0
0
Marlboro Direct Feed
January 2026
0
31
0
0
0
0
0
0
Marlboro Direct Feed
February 2026
7
28
7
0
0
0
0
0
Marlboro Direct Feed
March 2026
21
31
16
3
0
0
0
2
Marlboro Direct Feed
April 2026
30
30
29
0
0
0
0
1
Marlboro Direct Feed
May 2026
31
31
30
0
1
0
0
0
Marlboro Direct Feed
June 2026
30
30
30
0
0
0
0
0
Marlboro Direct Feed
July 2026
30
31
28
2
0
0
0
0
Marlboro Direct Feed
August 2026
20
31
20
0
0
0
0
0
Marlboro Direct Feed
September 2026
20
29
20
0
0
0
0
0
Linbro Park Direct Feed
March 2025
0
29
0
0
0
0
0
0
Linbro Park Direct Feed
April 2025
0
30
0
0
0
0
0
0
Linbro Park Direct Feed
May 2025
1
31
1
0
0
0
0
0
Linbro Park Direct Feed
June 2025
28
30
27
0
0
0
0
1
Linbro Park Direct Feed
July 2025
23
31
14
7
0
2
0
0
Linbro Park Direct Feed
August 2025
0
31
0
0
0
0
0
0
Linbro Park Direct Feed
September 2025
0
30
0
0
0
0
0
0
Linbro Park Direct Feed
October 2025
0
31
0
0
0
0
0
0
Linbro Park Direct Feed
November 2025
0
30
0
0
0
0
0
0
Linbro Park Direct Feed
December 2025
0
31
0
0
0
0
0
0
Linbro Park Direct Feed
January 2026
0
31
0
0
0
0
0
0
Linbro Park Direct Feed
February 2026
7
28
7
0
0
0
0
0
Linbro Park Direct Feed
March 2026
21
31
19
0
0
0
0
2
Linbro Park Direct Feed
April 2026
30
30
29
0
0
0
0
1
Linbro Park Direct Feed
May 2026
31
31
30
0
0
1
0
0
Linbro Park Direct Feed
June 2026
30
30
30
0
0
0
0
0
Linbro Park Direct Feed
July 2026
30
31
28
2
0
0
0
0
Linbro Park Direct Feed
August 2026
20
31
20
0
0
0
0
0
Linbro Park Direct Feed
September 2026
20
29
20
0
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. Linbro Park Direct Feed and Marlboro Direct Feed had water as normal. JW reported Linbro Park Direct Feed and Marlboro Direct Feed short of water on 1 and 0 days this year. A typical reservoir or tower in the city had 4 such days. On Linbro Park Direct Feed, its last 2 outages lasted 20 hours and 9 hours; the longest since March 2025 lasted 20 hours.
JW names at least these supplies for Kelvin. Its zone tables and lists do not name Kelvin, so there may be others. JW does not say which street each one reaches.
Found by our research in a JW customer notice, November 2023. Source 1 ↗
Outages
JW reported 4 outages on Kelvin's supplies since March 2025. The longest lasted 20 hours. Every outage, with how long it lasted: Linbro Park Direct Feed and Marlboro Direct Feed.
In 2026 so far, Kelvin had 4 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. Kelvin 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.