watersearch

Cosmo City Reservoir

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

Latest JW report

JW reported a scheduled overnight closure on 29 September 2026 at 20:40. The board read “Outlet closed overnight as part of Water Demand Management.” 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.

JW's page
Cosmo City Reservoir ↗

Suburbs it supplies

JW links 19 suburbs to Cosmo City Reservoir. Most also draw on other supplies.

Cosmo City, Farmall AH, Hoogland, Kya Sand, Lanseria, Lanseria Airport, Malibongwe Ridge, Millgate Farm AH, Mostyn Park, Mostyn Park AH, Noordhang, North Riding, North Riding AH, Sandpark AH, Sonnedal AH, Sunrella AH, Tirong, Trevallyn AH, Zandspruit.

Up the supply chain

On 29 September 2026, JW reported Cosmo City Reservoir supplying adequately

Where the water comes from, top to bottom, and what JW reported for each part on 29 September 2026. A suburb draws on every supply listed at once; JW does not say which street each one reaches.

Showing 29 September 2026, the last day in the record. Other days: 4 February 2026.

Bulk supply

Eikenhof Pump Station (Rand Water)

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

Feeds the Randburg system: stated by JW source ↗

System

Randburg system

JW reported 2 of 15 supplies in it short of water; 1 had no report.

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

Supply

Cosmo City Reservoir

JW reported supplying adequately at 13:18, then a scheduled overnight closure at 20:40.

As printed: “13:18 Supplying adequately.”; “20:40 Outlet closed overnight as part of Water Demand Management.”

In the Randburg system: listed on a JW page 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 29 September 2026, JW reported Cosmo City Reservoir supplying adequately”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/cosmo-city-reservoir#fig-chain

The data as a table
PartWhat it isFeedsHow we knowOn 29 September 2026
Eikenhof Pump Station (Rand Water)Rand Water stationthe Randburg systemstated by JWNo JW status for it
Randburg systemSystemJW's system page2 of 15 supplies short of water; 1 with no report
Cosmo City ReservoirReservoirJW's page or noticesupplying adequately

Cosmo City Reservoir over time

In 2026 so far, JW reported Cosmo City Reservoir short of water on 1 day

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 295 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: Cosmo City Reservoir: no report from 22 July 2025 to 31 January 2026.

2025
Mar3 Mar: supplying adequately4 Mar: no report5 Mar: supplying adequately6 Mar: supplying adequately7 Mar: supplying adequately8 Mar: supplying adequately9 Mar: supplying adequately10 Mar: no report11 Mar: supplying adequately12 Mar: supplying adequately13 Mar: supplying adequately14 Mar: supplying adequately15 Mar: no report16 Mar: no report17 Mar: supplying adequately18 Mar: supplying adequately19 Mar: supplying adequately20 Mar: supplying adequately21 Mar: no report22 Mar: no report23 Mar: no report24 Mar: supplying adequately25 Mar: supplying adequately26 Mar: supplying adequately27 Mar: supplying adequately28 Mar: no report29 Mar: no report30 Mar: no report31 Mar: no report0
Apr1 Apr: supplying adequately2 Apr: supplying adequately3 Apr: supplying adequately4 Apr: supplying adequately5 Apr: no report6 Apr: no report7 Apr: supplying adequately8 Apr: no report9 Apr: supplying adequately10 Apr: supplying adequately11 Apr: supplying adequately12 Apr: no report13 Apr: no report14 Apr: no report15 Apr: no report16 Apr: no report17 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 adequately0
May1 May: supplying adequately2 May: supplying adequately3 May: supplying adequately4 May: no report5 May: supplying adequately6 May: supplying adequately7 May: no report8 May: no report9 May: supplying adequately10 May: supplying adequately11 May: supplying adequately12 May: supplying adequately13 May: supplying adequately14 May: supplying adequately15 May: supplying adequately16 May: no report17 May: no report18 May: no report19 May: no report20 May: no report21 May: overnight closure22 May: no report23 May: supplying adequately24 May: no report25 May: no report26 May: supplying adequately27 May: supplying adequately28 May: no report29 May: no report30 May: no report31 May: no report0
Jun1 Jun: no report2 Jun: no report3 Jun: supplying fairly4 Jun: supplying fairly5 Jun: supplying adequately6 Jun: supplying fairly7 Jun: supplying fairly8 Jun: supplying fairly9 Jun: supplying fairly10 Jun: supplying fairly11 Jun: supplying fairly12 Jun: supplying fairly13 Jun: supplying fairly14 Jun: supplying fairly15 Jun: supplying fairly16 Jun: supplying adequately17 Jun: supplying fairly18 Jun: supplying adequately19 Jun: supplying fairly20 Jun: supplying fairly21 Jun: supplying fairly22 Jun: supplying fairly23 Jun: supplying fairly24 Jun: supplying fairly25 Jun: supplying fairly26 Jun: supplying fairly27 Jun: supplying fairly28 Jun: supplying fairly29 Jun: supplying adequately30 Jun: supplying adequately0
Jul1 Jul: supplying adequately2 Jul: supplying adequately3 Jul: supplying adequately4 Jul: supplying adequately5 Jul: supplying fairly6 Jul: supplying fairly7 Jul: supplying adequately8 Jul: supplying adequately9 Jul: supplying adequately10 Jul: supplying adequately11 Jul: supplying adequately12 Jul: supplying adequately13 Jul: supplying fairly14 Jul: supplying fairly15 Jul: supplying adequately16 Jul: supplying fairly17 Jul: supplying fairly18 Jul: supplying fairly19 Jul: supplying fairly20 Jul: supplying fairly21 Jul: supplying fairly22 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 report0
AugNo JW boards, Aug 2025 to Jan 2026
2026
Feb1 Feb: supplying fairly2 Feb: supplying fairly3 Feb: supplying fairly4 Feb: poor pressure to no water5 Feb: no report6 Feb: no report7 Feb: supplying adequately8 Feb: overnight closure9 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 report1
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 fairly12 Mar: supplying fairly13 Mar: supplying fairly14 Mar: supplying fairly15 Mar: supplying fairly16 Mar: low17 Mar: supplying fairly18 Mar: supplying fairly19 Mar: supplying fairly20 Mar: supplying fairly21 Mar: supplying adequately22 Mar: supplying adequately23 Mar: supplying adequately24 Mar: supplying adequately25 Mar: supplying adequately26 Mar: supplying adequately27 Mar: supplying fairly28 Mar: supplying fairly29 Mar: supplying fairly30 Mar: supplying fairly31 Mar: supplying fairly0
Apr1 Apr: supplying fairly2 Apr: supplying fairly3 Apr: supplying fairly4 Apr: supplying fairly5 Apr: supplying fairly6 Apr: supplying fairly7 Apr: supplying fairly8 Apr: supplying fairly9 Apr: supplying fairly10 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 adequately0
May1 May: supplying adequately2 May: supplying adequately3 May: supplying adequately4 May: supplying adequately5 May: supplying adequately6 May: supplying adequately7 May: supplying adequately8 May: supplying adequately9 May: supplying adequately10 May: supplying adequately11 May: overnight closure12 May: supplying fairly13 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: overnight closure26 May: supplying adequately27 May: supplying adequately28 May: supplying adequately29 May: supplying adequately30 May: supplying adequately31 May: supplying adequately0
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 fairly17 Jun: supplying adequately18 Jun: supplying fairly19 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: overnight closure0
Jul1 Jul: supplying adequately2 Jul: no report3 Jul: supplying adequately4 Jul: overnight closure5 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: overnight closure17 Jul: supplying adequately18 Jul: supplying adequately19 Jul: supplying adequately20 Jul: supplying fairly21 Jul: supplying fairly22 Jul: supplying fairly23 Jul: overnight closure24 Jul: supplying fairly25 Jul: supplying adequately26 Jul: supplying adequately27 Jul: supplying adequately28 Jul: supplying adequately29 Jul: supplying adequately30 Jul: supplying adequately31 Jul: supplying adequately0
Aug1 Aug: no report2 Aug: no report3 Aug: low4 Aug: low5 Aug: supplying fairly6 Aug: supplying fairly7 Aug: supplying adequately8 Aug: overnight closure9 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: supplying adequately20 Aug: supplying adequately21 Aug: supplying adequately22 Aug: no report23 Aug: no report24 Aug: supplying adequately25 Aug: overnight closure26 Aug: supplying fairly27 Aug: poor pressure in places28 Aug: supplying fairly29 Aug: no report30 Aug: no report31 Aug: supplying fairly0
Sep1 Sep: supplying adequately2 Sep: supplying fairly3 Sep: supplying fairly4 Sep: supplying fairly5 Sep: no report6 Sep: no report7 Sep: supplying adequately8 Sep: supplying adequately9 Sep: supplying adequately10 Sep: overnight closure11 Sep: supplying fairly12 Sep: no report13 Sep: no report14 Sep: supplying fairly15 Sep: supplying fairly16 Sep: low17 Sep: supplying fairly18 Sep: supplying fairly19 Sep: no report20 Sep: no report21 Sep: supplying fairly22 Sep: supplying adequately23 Sep: supplying fairly24 Sep: no report25 Sep: supplying fairly26 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 Cosmo City Reservoir short of water on 1 day”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/cosmo-city-reservoir#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 202518291800000
April 202522302200000
May 202516311500001
June 202528302800000
July 202521312100000
August 2025031000000
September 2025030000000
October 2025031000000
November 2025030000000
December 2025031000000
January 2026031000000
February 2026728500101
March 202621312010000
April 202630303000000
May 202631312900002
June 202630302900001
July 202630312700003
August 202621311630002
September 202620291810001

From April to September 2026 (six months), JW reported Cosmo City Reservoir short of water on 0 of 162 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: 1 day short of water for Cosmo City Reservoir, from 190 days with a report. The median supply in the city: 4 days.

102030Mar 2025: 0 days short of water, 0 critically low; reported 18 of 29 days2025MApr 2025: 0 days short of water, 0 critically low; reported 22 of 30 daysAMay 2025: 0 days short of water, 0 critically low; reported 16 of 31 daysMJun 2025: 0 days short of water, 0 critically low; reported 28 of 30 daysJJul 2025: 0 days short of water, 0 critically low; reported 21 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: 1 day short of water, 0 critically low; reported 7 of 28 daysFMar 2026: 0 days short of water, 0 critically low; reported 21 of 31 daysMApr 2026: 0 days short of water, 0 critically low; reported 30 of 30 daysAMay 2026: 0 days short of water, 0 critically low; reported 31 of 31 daysMJun 2026: 0 days short of water, 0 critically low; reported 30 of 30 daysJJul 2026: 0 days short of water, 0 critically low; reported 30 of 31 daysJAug 2026: 0 days short of water, 0 critically low; reported 21 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 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 Cosmo City Reservoir short of water on 0 of 162 reported days”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/cosmo-city-reservoir#fig-days

The data as a table
MonthDays short of waterDays reportedDays in recordCity median
March 2025018290
April 2025022300
May 2025016310
June 2025028300
July 2025021310
August 2025gap031
September 2025gap030
October 2025gap031
November 2025gap030
December 2025gap031
January 2026gap031
February 202617280
March 2026021310
April 2026030300
May 2026031310
June 2026030300
July 2026030311
August 2026021310
September 2026020290

On Cosmo City Reservoir, its one outage lasted at least 36 hours

This is not a forecast. It is how long past outages lasted. Each dot is one past outage, placed by its length: the one outage on Cosmo City Reservoir. 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 (1 of 1).

012daysFrom 4 February 2026: at least 36 hours, no reported endlongest 36 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 Cosmo City Reservoir, its one outage lasted at least 36 hours”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/cosmo-city-reservoir#fig-base-rate

The data as a table
StartedLengthEnded
4 February 2026at least 36 hoursno reported end

JW's notices gave 4 end times for Cosmo City Reservoir. By the stated time, JW's boards showed the water back on none of the 4 that have passed

The water came back after the stated time 4 times; half of those times it was back within 1 hour 50 minutes of it. Each row is one end time a JW notice stated for one supply, in date order (hollow dot), against the first board on which JW reported the supply supplying fairly or better and off bypass (filled dot). This asks more than the end of an outage, which comes at JW's first report better than “poor pressure to no water” or “critically low”. An arrow: no such board yet. From 6 notices.

Jan 2026Jul 2026last board 29 Sep 2026Stated end 19 Aug 2025 16:00; recovered 1 Feb 2026 11:20Stated end 19 Aug 2025: 166 days lateStated end 2 Jun 2026 18:00; recovered 2 Jun 2026 20:45Stated end 2 Jun 2026: 2 hours 45 minutes lateStated end 18 Jun 2026 18:00; recovered 18 Jun 2026 18:55Stated end 18 Jun 2026: 55 minutes lateStated end 15 Sep 2026 16:00; recovered 15 Sep 2026 16:45Stated end 15 Sep 2026: 45 minutes late

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). “JW's notices gave 4 end times for Cosmo City Reservoir. By the stated time, JW's boards showed the water back on none of the 4 that have passed”. Data release 2026-09-29-318d9dca. https://watersearch.co.za/reservoir/cosmo-city-reservoir#fig-stated

The data as a table
NoticeSupplyReason JW gaveStated endFirst board showing recoveryAgainst the stated time
19 August 2025Cosmo City ReservoirRepairs to the PRV Chamber19 August 2025 16:001 February 2026 11:20165 days 19 hours after the stated time
2 June 2026Cosmo City ReservoirTo facilitate all fourteen (14) tie- ins, connecting the newly installed 110mm pipelines to the existing 110mm water reticulation network, ensuring successful integration and commissioning of the upgraded infrastructure.; To facilitate all fourteen (14) tie-ins, connecting the newly installed 110mm pipelines to the existing 110mm water reticulation network, ensuring successful integration and commissioning of the upgraded infrastructure.2 June 2026 18:002 June 2026 20:452 hours 45 minutes after the stated time
18 June 2026Cosmo City ReservoirTemporary water supply disruptions are required to facilitate all twenty-four (24) tie-ins connecting the newly installed 110mm pipelines to the existing 110mm water reticulation network, ensuring successful integration and commissioning of the upgraded infrastructure.; Dummy run shutdown for tie-in of new infrastructure for patsing water provision to existing infrastructure.18 June 2026 18:0018 June 2026 18:5555 minutes after the stated time
15 September 2026Cosmo City ReservoirRepair of a burst on the outlet.15 September 2026 16:0015 September 2026 16:4545 minutes after the stated time

In words

2026 so far: JW reported it at “poor pressure to no water” or “critically low” on 1 day. JW published a report for it on 190 of the 272 days in the record; the other 82 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 0 days. JW published a report for it on 105 of the 304 days in the record; the other 199 days have no report, and we do not count them as normal. The median supply in the city had 1 such day.

The one outage JW reported on this supply lasted at least 36 hours. It had no reported end (still open, or JW's reports stopped), so it counts at the length so far. This is a record of the past, not a forecast.

JW's boards first named Cosmo City Reservoir on 3 March 2025 and last on 29 September 2026: 491 statuses on 490 boards, over 295 days. 48 of those statuses announced a scheduled overnight closure, which we count apart, never as an outage.

Month by month

Days JW reported Cosmo City Reservoir 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 2025018
April 2025022
May 2025016
June 2025028
July 2025021
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 202617
March 20260210 of 18 days
April 20260300 of 22 days
May 20260310 of 16 days
June 20260300 of 28 days
July 20260300 of 21 days
August 2026021Too few reports to compare
September 2026020Too few reports to compare

Recent JW reports

The last 20 statuses JW printed for Cosmo City Reservoir, newest first.

JW reported a scheduled overnight closure on 29 September 2026 at 20:40. The board read “Outlet closed overnight as part of Water Demand Management.” 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 13:18. 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 13:59. 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 fairly on 25 September 2026 at 19:25. The board read “Supplying fairly.” 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 fairly on 25 September 2026 at 13:35. The board read “Supplying fairly.” 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 fairly on 23 September 2026 at 18:50. The board read “Supplying fairly”. 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 23 September 2026. JW reported supplying fairly on 23 September 2026 at 11:30. The board read “Supplying fairly.” 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 10:55. 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 fairly on 21 September 2026 at 18:36. The board read “Supplying fairly.” 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 fairly on 21 September 2026 at 13:50. The board read “Supplying fairly.” 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 fairly on 18 September 2026 at 16:15. The board read “Supplying fairly.” 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 fairly on 18 September 2026 at 10:20. The board read “Supplying fairly.” 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 fairly on 17 September 2026 at 15:25. The board read “Supplying fairly. Overnight closure.” 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 fairly on 17 September 2026 at 09:25. The board read “Supplying fairly.” 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 low on 16 September 2026 at 15:00. The board read “Supplying fairly. But low”. 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 fairly on 16 September 2026 at 09:40. The board read “Supplying fairly.” 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 fairly on 15 September 2026 at 16:45. The board read “Supplying fairly. Overnight closure”. 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 fairly on 15 September 2026 at 10:25. The board read “Supplying fairly.” 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 fairly on 14 September 2026 at 10:35. The board read “Supplying fairly.” JW put it on its website 15 September 2026 at 11:24. JW's post ↗ · JW's image of the board ↗

No JW report since 11 September 2026. JW reported supplying fairly on 11 September 2026 at 11:14. The board read “Supplying fairly.” JW put it on its website 15 September 2026 at 10:58. JW's post ↗ · JW's image of the board ↗

Past outages

Each row is one outage: a stretch of time JW reported Cosmo City Reservoir 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
4 Feb 2026, 18:55No 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.