watersearch

Horizon Tower

A tower in Johannesburg Water's Roodepoort system. What Johannesburg Water (JW) reported about it, from March 2025.

Latest JW report

JW reported supplying adequately on 29 September 2026 at 21:00. The board read “Supplying adequately.” JW put it on its website 1 October 2026 at 13:40. JW's page for this board ↗ · JW's image of the board ↗

Live updates during the day: Johannesburg Water ↗ and OurPower ↗. This page keeps the history.

Suburbs it supplies

JW links 12 suburbs to Horizon Tower. Most also draw on other supplies.

Carenvale, Constantia Kloof, Discovery, Florida Park, Helderkruin, Honey Hill, Horison, Horison Park, Horizon View, Kloofendal, Ontdekkerspark, Selwyn.

Up the supply chain

On 5 April 2026, JW reported Horizon Tower critically low

Where the water comes from, top to bottom, and what JW reported for each part on 5 April 2026. A suburb draws on every supply listed at once; JW does not say which street each one reaches.

Showing 5 April 2026. Other days: 24 August 2026, 17 July 2026, 3 May 2026, 5 April 2026, 27 March 2026, 2 July 2025, or the last day.

Bulk supply

Eikenhof Pump Station (Rand Water)

JW's boards carry no status for Rand Water's stations.

Feeds the Roodepoort system: stated by JW source ↗

System

Roodepoort system

JW reported 1 of 9 supplies in it short of water.

Fed from Eikenhof Pump Station (Rand Water): stated by JW source ↗

Supply

Horizon Tower

JW reported critically low at 10:15, then supplying adequately at 19:45.

As printed: “10:15 Critically low due to a technical fault. Investigation in progress.”; “19:45 Supplying adequately.”

In the Roodepoort system: inferred from JW's wording source ↗

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). “On 5 April 2026, JW reported Horizon Tower critically low”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/horizon-tower#fig-chain

The data as a table
PartWhat it isFeedsHow we knowOn 5 April 2026
Eikenhof Pump Station (Rand Water)Rand Water stationthe Roodepoort systemstated by JWNo JW status for it
Roodepoort systemSystemJW's system page1 of 9 supplies short of water; 0 with no report
Horizon TowerTowerJW's page or noticecritically low

Horizon Tower over time

In 2026 so far, JW reported Horizon Tower short of water on 7 days

What JW reported each day, 3 March 2025 to 29 September 2026, one row a month; the number at the right is the month's days short of water. Based on 208 days with a JW report. 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”. Gaps: Horizon Tower: no report from 14 July 2025 to 31 January 2026.

2025
MarNo JW boards this month
Apr1 Apr: no report2 Apr: no report3 Apr: no report4 Apr: no report5 Apr: no report6 Apr: no report7 Apr: no report8 Apr: no report9 Apr: no report10 Apr: no report11 Apr: no report12 Apr: no report13 Apr: no report14 Apr: no report15 Apr: no report16 Apr: no report17 Apr: no report18 Apr: no report19 Apr: no report20 Apr: no report21 Apr: no report22 Apr: no report23 Apr: no report24 Apr: no report25 Apr: no report26 Apr: no report27 Apr: no report28 Apr: no report29 Apr: critically low30 Apr: no report1
May1 May: no report2 May: no report3 May: no report4 May: no report5 May: no report6 May: no report7 May: no report8 May: no report9 May: no report10 May: no report11 May: no report12 May: no report13 May: no report14 May: no report15 May: no report16 May: no report17 May: no report18 May: no report19 May: no report20 May: no report21 May: poor pressure to no water22 May: no report23 May: no report24 May: no report25 May: no report26 May: no report27 May: supplying adequately28 May: no report29 May: no report30 May: no report31 May: no report1
Jun1 Jun: no report2 Jun: no report3 Jun: supplying adequately4 Jun: supplying adequately5 Jun: supplying adequately6 Jun: no report7 Jun: no report8 Jun: no report9 Jun: no report10 Jun: no report11 Jun: no report12 Jun: no report13 Jun: no report14 Jun: no report15 Jun: no report16 Jun: no report17 Jun: no report18 Jun: no report19 Jun: no report20 Jun: no report21 Jun: no report22 Jun: supplying adequately23 Jun: no report24 Jun: no report25 Jun: no report26 Jun: no report27 Jun: no report28 Jun: no report29 Jun: no report30 Jun: no report0
Jul1 Jul: no report2 Jul: poor pressure to no water3 Jul: poor pressure to no water4 Jul: supplying fairly5 Jul: supplying adequately6 Jul: supplying adequately7 Jul: supplying adequately8 Jul: supplying adequately9 Jul: supplying adequately10 Jul: supplying adequately11 Jul: supplying adequately12 Jul: supplying adequately13 Jul: supplying adequately14 Jul: no report15 Jul: no report16 Jul: no report17 Jul: no report18 Jul: no report19 Jul: no report20 Jul: no report21 Jul: no report22 Jul: no report23 Jul: no report24 Jul: no report25 Jul: no report26 Jul: no report27 Jul: no report28 Jul: no report29 Jul: no report30 Jul: no report31 Jul: no report2
AugNo JW boards, Aug 2025 to Jan 2026
2026
Feb1 Feb: supplying adequately2 Feb: supplying adequately3 Feb: supplying adequately4 Feb: supplying adequately5 Feb: no report6 Feb: no report7 Feb: supplying adequately8 Feb: supplying adequately9 Feb: supplying adequately10 Feb: no report11 Feb: no report12 Feb: no report13 Feb: no report14 Feb: no report15 Feb: no report16 Feb: no report17 Feb: no report18 Feb: no report19 Feb: no report20 Feb: no report21 Feb: no report22 Feb: no report23 Feb: no report24 Feb: no report25 Feb: no report26 Feb: no report27 Feb: no report28 Feb: no report0
Mar1 Mar: no report2 Mar: no report3 Mar: no report4 Mar: no report5 Mar: no report6 Mar: no report7 Mar: no report8 Mar: no report9 Mar: no report10 Mar: no report11 Mar: supplying adequately12 Mar: supplying adequately13 Mar: supplying adequately14 Mar: supplying adequately15 Mar: supplying adequately16 Mar: supplying adequately17 Mar: supplying adequately18 Mar: supplying adequately19 Mar: supplying adequately20 Mar: supplying adequately21 Mar: supplying adequately22 Mar: supplying adequately23 Mar: supplying adequately24 Mar: supplying adequately25 Mar: supplying adequately26 Mar: supplying adequately27 Mar: critically low28 Mar: supplying adequately29 Mar: supplying adequately30 Mar: supplying adequately31 Mar: supplying adequately1
Apr1 Apr: supplying adequately2 Apr: supplying adequately3 Apr: supplying adequately4 Apr: supplying adequately5 Apr: critically low6 Apr: supplying adequately7 Apr: supplying adequately8 Apr: supplying adequately9 Apr: supplying adequately10 Apr: supplying adequately11 Apr: supplying adequately12 Apr: supplying adequately13 Apr: supplying adequately14 Apr: supplying adequately15 Apr: supplying adequately16 Apr: supplying adequately17 Apr: supplying adequately18 Apr: supplying adequately19 Apr: supplying adequately20 Apr: supplying adequately21 Apr: supplying adequately22 Apr: supplying adequately23 Apr: supplying adequately24 Apr: supplying adequately25 Apr: supplying adequately26 Apr: supplying adequately27 Apr: supplying adequately28 Apr: supplying adequately29 Apr: supplying adequately30 Apr: supplying adequately1
May1 May: supplying adequately2 May: supplying adequately3 May: critically low4 May: supplying adequately5 May: supplying adequately6 May: supplying adequately7 May: supplying adequately8 May: supplying adequately9 May: supplying adequately10 May: supplying adequately11 May: supplying adequately12 May: supplying adequately13 May: supplying adequately14 May: supplying adequately15 May: supplying adequately16 May: supplying adequately17 May: supplying adequately18 May: supplying adequately19 May: supplying adequately20 May: supplying adequately21 May: supplying adequately22 May: supplying adequately23 May: supplying adequately24 May: supplying adequately25 May: supplying adequately26 May: supplying adequately27 May: supplying adequately28 May: supplying adequately29 May: supplying adequately30 May: supplying adequately31 May: supplying adequately1
Jun1 Jun: supplying adequately2 Jun: supplying adequately3 Jun: supplying adequately4 Jun: supplying adequately5 Jun: supplying adequately6 Jun: supplying adequately7 Jun: supplying adequately8 Jun: supplying adequately9 Jun: supplying adequately10 Jun: supplying adequately11 Jun: supplying adequately12 Jun: supplying adequately13 Jun: supplying adequately14 Jun: supplying adequately15 Jun: supplying adequately16 Jun: supplying adequately17 Jun: supplying adequately18 Jun: supplying adequately19 Jun: supplying adequately20 Jun: supplying adequately21 Jun: supplying adequately22 Jun: supplying adequately23 Jun: supplying adequately24 Jun: supplying adequately25 Jun: supplying adequately26 Jun: supplying adequately27 Jun: supplying adequately28 Jun: supplying adequately29 Jun: supplying adequately30 Jun: supplying adequately0
Jul1 Jul: supplying adequately2 Jul: supplying adequately3 Jul: supplying adequately4 Jul: supplying adequately5 Jul: supplying adequately6 Jul: supplying adequately7 Jul: supplying adequately8 Jul: supplying adequately9 Jul: supplying adequately10 Jul: supplying adequately11 Jul: supplying adequately12 Jul: supplying adequately13 Jul: supplying adequately14 Jul: supplying adequately15 Jul: supplying adequately16 Jul: supplying adequately17 Jul: critically low18 Jul: critically low19 Jul: critically low20 Jul: supplying fairly21 Jul: supplying fairly22 Jul: supplying fairly23 Jul: supplying fairly24 Jul: supplying adequately25 Jul: supplying adequately26 Jul: supplying adequately27 Jul: supplying adequately28 Jul: supplying adequately29 Jul: supplying adequately30 Jul: supplying adequately31 Jul: supplying adequately3
Aug1 Aug: no report2 Aug: no report3 Aug: supplying adequately4 Aug: supplying adequately5 Aug: supplying adequately6 Aug: supplying adequately7 Aug: supplying adequately8 Aug: supplying adequately9 Aug: no report10 Aug: no report11 Aug: supplying adequately12 Aug: supplying adequately13 Aug: supplying adequately14 Aug: supplying adequately15 Aug: no report16 Aug: no report17 Aug: supplying adequately18 Aug: supplying adequately19 Aug: no report20 Aug: supplying adequately21 Aug: supplying adequately22 Aug: no report23 Aug: no report24 Aug: critically low25 Aug: low26 Aug: no report27 Aug: supplying fairly28 Aug: supplying fairly29 Aug: no report30 Aug: no report31 Aug: supplying adequately1
Sep1 Sep: supplying adequately2 Sep: supplying adequately3 Sep: supplying adequately4 Sep: supplying adequately5 Sep: no report6 Sep: no report7 Sep: supplying adequately8 Sep: supplying adequately9 Sep: supplying adequately10 Sep: supplying adequately11 Sep: supplying adequately12 Sep: no report13 Sep: no report14 Sep: supplying adequately15 Sep: supplying adequately16 Sep: supplying adequately17 Sep: supplying adequately18 Sep: supplying adequately19 Sep: no report20 Sep: no report21 Sep: supplying adequately22 Sep: supplying adequately23 Sep: supplying adequately24 Sep: no report25 Sep: supplying adequately26 Sep: no report27 Sep: no report28 Sep: supplying adequately29 Sep: supplying adequately0
  • 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 Horizon Tower short of water on 7 days”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/horizon-tower#fig-year

The data as a table
MonthDays reportedDays in recordAdequate or fairPoor pressure in places, or lowWarning: no water may occurPoor pressure to no waterCritically lowOvernight closure
March 2025029000000
April 2025130000010
May 2025231100100
June 2025430400000
July 202512311000200
August 2025031000000
September 2025030000000
October 2025031000000
November 2025030000000
December 2025031000000
January 2026031000000
February 2026728700000
March 202621312000010
April 202630302900010
May 202631313000010
June 202630303000000
July 202631312800030
August 202619311710010
September 202620292000000

From April to September 2026 (six months), JW reported Horizon Tower short of water on 6 of 161 reported days

Days per month short of water, stacked: critically low at the base. The tick is the median supply in the city that month. The strip under each bar is the share of days with a JW report; a month with none says gap. 3 March 2025 to 29 September 2026.

In 2026 so far: 7 days short of water for Horizon Tower, from 189 days with a report. The median supply in the city: 4 days.

102030Mar 2025: 0 days short of water, 0 critically low; reported 0 of 29 daysgap2025MApr 2025: 1 day short of water, 1 critically low; reported 1 of 30 daysAMay 2025: 1 day short of water, 0 critically low; reported 2 of 31 daysMJun 2025: 0 days short of water, 0 critically low; reported 4 of 30 daysJJul 2025: 2 days short of water, 0 critically low; reported 12 of 31 daysJAug 2025: 0 days short of water, 0 critically low; reported 0 of 31 daysgapASep 2025: 0 days short of water, 0 critically low; reported 0 of 30 daysgapSOct 2025: 0 days short of water, 0 critically low; reported 0 of 31 daysgapONov 2025: 0 days short of water, 0 critically low; reported 0 of 30 daysgapNDec 2025: 0 days short of water, 0 critically low; reported 0 of 31 daysgapDJan 2026: 0 days short of water, 0 critically low; reported 0 of 31 daysgap2026JFeb 2026: 0 days short of water, 0 critically low; reported 7 of 28 daysFMar 2026: 1 day short of water, 1 critically low; reported 21 of 31 daysMApr 2026: 1 day short of water, 1 critically low; reported 30 of 30 daysAMay 2026: 1 day short of water, 1 critically low; reported 31 of 31 daysMJun 2026: 0 days short of water, 0 critically low; reported 30 of 30 daysJJul 2026: 3 days short of water, 3 critically low; reported 31 of 31 daysJAug 2026: 1 day short of water, 1 critically low; reported 19 of 31 daysASep 2026: 0 days short of water, 0 critically low; reported 20 of 29 daysScity median 0city median 0city median 0city median 0city median 0city median 0city median 0city median 0city median 0city median 1city median 0city median 0

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). “From April to September 2026 (six months), JW reported Horizon Tower short of water on 6 of 161 reported days”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/horizon-tower#fig-days

The data as a table
MonthDays short of waterDays reportedDays in recordCity median
March 2025gap0290
April 202511300
May 202512310
June 202504300
July 2025212310
August 2025gap031
September 2025gap030
October 2025gap031
November 2025gap030
December 2025gap031
January 2026gap031
February 202607280
March 2026121310
April 2026130300
May 2026131310
June 2026030300
July 2026331311
August 2026119310
September 2026020290

On Horizon Tower, half of its last 8 outages lasted at least 25 hours

This is not a forecast. It is how long past outages lasted. Each dot is one past outage, placed by its length: the last 8 outages on Horizon Tower. A hollow dot with an arrow had no reported end: JW's reports stopped before it ended, or it was still going at JW's last report. Either way it lasted at least that long (3 of 8).

012daysFrom 5 April 2026: 10 hoursFrom 27 March 2026: 10 hoursFrom 2 July 2025: at least 24 hours, no reported endFrom 24 August 2026: 25 hoursFrom 3 May 2026: 25 hoursFrom 21 May 2025: at least 36 hours, no reported endFrom 29 April 2025: at least 36 hours, no reported endFrom 17 July 2026: 47 hourslongest 47 hourshalf at least 25 hoursHalf of its last 8 outages lasted at least 25 hours

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). “On Horizon Tower, half of its last 8 outages lasted at least 25 hours”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/horizon-tower#fig-base-rate

The data as a table
StartedLengthEnded
24 August 202625 hours25 August 2026
17 July 202647 hours19 July 2026
3 May 202625 hours4 May 2026
5 April 202610 hours5 April 2026
27 March 202610 hours27 March 2026
2 July 2025at least 24 hoursno reported end
21 May 2025at least 36 hoursno reported end
29 April 2025at least 36 hoursno reported end

In words

2026 so far: JW reported it at “poor pressure to no water” or “critically low” on 7 days. JW published a report for it on 189 of the 272 days in the record; the other 83 days have no report, and we do not count them as normal. The median supply in the city had 4 such days.

2025: JW reported it at “poor pressure to no water” or “critically low” on 4 days. JW published a report for it on 19 of the 304 days in the record; the other 285 days have no report, and we do not count them as normal. The median supply in the city had 1 such day.

The last 8 outages JW reported on this supply lasted a median of at least 25 hours; the longest at least 47 hours. 3 of them had no reported end (still open, or JW's reports stopped), so they count at the length so far. This is a record of the past, not a forecast.

JW's boards first named Horizon Tower on 29 April 2025 and last on 29 September 2026: 357 statuses on 357 boards, over 208 days. 10 of those statuses announced a scheduled overnight closure, which we count apart, never as an outage.

Month by month

Days JW reported Horizon Tower at “poor pressure to no water” or “critically low”, out of the days it reported it at all. A month with few reported days says little.

MonthDays short of waterDays with a reportSame month a year earlier
March 2025No JW report this month
April 202511
May 202512
June 202504
July 2025212
August 2025No JW report this month
September 2025No JW report this month
October 2025No JW report this month
November 2025No JW report this month
December 2025No JW report this month
January 2026No JW report this month
February 202607
March 2026121Too few reports to compare
April 2026130Too few reports to compare
May 2026131Too few reports to compare
June 2026030Too few reports to compare
July 2026331Too few reports to compare
August 2026119Too few reports to compare
September 2026020Too few reports to compare

Recent JW reports

The last 20 statuses JW printed for Horizon Tower, newest first.

JW reported supplying adequately on 29 September 2026 at 21:00. The board read “Supplying adequately.” JW put it on its website 1 October 2026 at 13:40. JW's page for this board ↗ · JW's image of the board ↗

JW reported supplying adequately on 29 September 2026 at 13:40. The board read “Supplying adequately.” JW put it on its website 1 October 2026 at 13:41. JW's page for this board ↗ · JW's image of the board ↗

JW reported supplying adequately on 28 September 2026 at 14:10. The board read “Supplying adequately.” JW put it on its website 1 October 2026 at 13:42. JW's page for this board ↗ · JW's image of the board ↗

No JW report since 25 September 2026. JW reported supplying adequately on 25 September 2026 at 19:30. The board read “Supplying adequately.” JW put it on its website 28 September 2026 at 10:32. JW's page for this board ↗ · JW's image of the board ↗

No JW report since 25 September 2026. JW reported supplying adequately on 25 September 2026 at 13:45. The board read “Supplying adequately.” JW put it on its website 28 September 2026 at 10:31. JW's page for this board ↗ · JW's image of the board ↗

No JW report since 23 September 2026. JW reported supplying adequately on 23 September 2026 at 18:20. The board read “Supplying adequately”. JW put it on its website 25 September 2026 at 10:41. JW's post ↗ · JW's image of the board ↗

No JW report since 23 September 2026. JW reported supplying adequately on 23 September 2026 at 11:22. The board read “Supplying adequately.” JW put it on its website 25 September 2026 at 10:40. JW's post ↗ · JW's image of the board ↗

No JW report since 22 September 2026. JW reported supplying adequately on 22 September 2026 at 11:10. The board read “Supplying adequately.” JW put it on its website 22 September 2026 at 15:41. JW's post ↗ · JW's image of the board ↗

No JW report since 21 September 2026. JW reported supplying adequately on 21 September 2026 at 18:55. The board read “Supplying adequately”. JW put it on its website 22 September 2026 at 14:09. JW's post ↗ · JW's image of the board ↗

No JW report since 21 September 2026. JW reported supplying adequately on 21 September 2026 at 13:45. The board read “Supplying adequately.” JW put it on its website 22 September 2026 at 14:08. JW's post ↗ · JW's image of the board ↗

No JW report since 18 September 2026. JW reported supplying adequately on 18 September 2026 at 16:15. The board read “Supplying adequately.” JW put it on its website 21 September 2026 at 09:06. JW's post ↗ · JW's image of the board ↗

No JW report since 18 September 2026. JW reported supplying adequately on 18 September 2026 at 10:05. The board read “Supplying adequately.” JW put it on its website 21 September 2026 at 09:04. JW's post ↗ · JW's image of the board ↗

No JW report since 17 September 2026. JW reported supplying adequately on 17 September 2026 at 15:15. The board read “Supplying adequately.” JW put it on its website 18 September 2026 at 10:41. JW's post ↗ · JW's image of the board ↗

No JW report since 17 September 2026. JW reported supplying adequately on 17 September 2026 at 09:10. The board read “Supplying adequately.” JW put it on its website 18 September 2026 at 10:40. JW's post ↗ · JW's image of the board ↗

No JW report since 16 September 2026. JW reported supplying adequately on 16 September 2026 at 14:55. The board read “Supplying adequately.” JW put it on its website 16 September 2026 at 15:56. JW's post ↗ · JW's image of the board ↗

No JW report since 16 September 2026. JW reported supplying adequately on 16 September 2026 at 09:45. The board read “Supplying adequately.” JW put it on its website 16 September 2026 at 15:52. JW's post ↗ · JW's image of the board ↗

No JW report since 15 September 2026. JW reported supplying adequately on 15 September 2026 at 16:35. The board read “Supplying adequately.” JW put it on its website 16 September 2026 at 10:17. JW's post ↗ · JW's image of the board ↗

No JW report since 15 September 2026. JW reported supplying adequately on 15 September 2026 at 10:10. The board read “Supplying adequately.” JW put it on its website 16 September 2026 at 10:11. JW's post ↗ · JW's image of the board ↗

No JW report since 14 September 2026. JW reported supplying adequately on 14 September 2026 at 09:59. The board read “Supplying adequately.” JW put it on its website 15 September 2026 at 11:25. JW's post ↗ · JW's image of the board ↗

No JW report since 11 September 2026. JW reported supplying adequately on 11 September 2026 at 10:58. The board read “Supplying adequately.” JW put it on its website 15 September 2026 at 10:59. JW's post ↗ · JW's image of the board ↗

Past outages

Each row is one outage: a stretch of time JW reported Horizon Tower at “poor pressure to no water” or “critically low”, newest first. An outage has no reported end when JW's reports stopped before it ended, or when it was still going at JW's last report; its length is then a minimum.

StartEndLength
24 Aug 2026, 14:0025 Aug 2026, 14:4625 hours
17 Jul 2026, 21:0519 Jul 2026, 19:5547 hours
3 May 2026, 09:304 May 2026, 10:5525 hours
5 Apr 2026, 10:155 Apr 2026, 19:4510 hours
27 Mar 2026, 11:2527 Mar 2026, 21:2510 hours
2 Jul 2025, 19:45No reported endat least 24 hours
21 May 2025, 13:15No reported endat least 36 hours
29 Apr 2025, 15:30No reported endat least 36 hours

What JW's boards cannot tell you

Source: JW's System Update boards and notices, read by us. The full list, and how this record is made.