Research history

Current published edition

PlayPumps

As recorded by . This is a dated public record of drafts, changes, sources and review declarations. A page, checksum or merged pull request does not establish a scientific result or independent review.

Edition
edition:2026-10-27-initial
Edition checksum
63af9ab52aa86652f81ea1fac0b7c40aaad46cd8623865918d41ec347f9b2cd3
Projection checksum
08a373e3b85d7ed44d36bc472444b5773f7cbd1dde11f60e0053b3ba4884b65c
Period
inclusive to exclusive.
Starting baseline
Unknown before the recorded capture. Present states are not backdated to January.

JSON retains the complete pinned edition. CSV covers every recorded event in this edition; view filters do not change either download.

Recorded activity and qualification

  • 43Stable records
  • 45Subject versions
  • 43Recorded events
  • 0Review declarations
  • 0Subjects with qualifying source review
  • 0Peer-reviewed manuscripts
  • 0Qualifying research results
  • 1Editorial correction artifacts
  • 2Changed claim subjects
  • 23Open problems
  • 0Partially resolved problems
  • 0Solved problems
  • 0Problems under review
  • 0Unresolved challenges

Qualification follows the exact recorded public declarations. The ledger cannot establish identity, independence, source reading or truth by itself. Editorial corrections, proposed methods and software checks are separate from qualifying research results.

Coverage and limits

40 source entries are covered by this edition. Claim-level records cover only their selected wording and context; they do not qualify a whole manuscript. Source-derived case labels describe the published summaries, not Charitology fieldwork or charity ratings.

Entry links open the present site. The separate pinned source text retains this edition’s exact archived bytes.

PlayPumps · Source-derived case · version 1
Source review: draft

case:playpumps

Qualification follows the exact recorded public declarations. The ledger cannot establish identity, independence, source reading or truth by itself.

Versions and exact subjects

Version entries 1–1

Version 1: PlayPumps

Current subject in this edition

Subject checksum
88662c2c0b2104a1a7f774fdfbbfa34fd27358c3479dceb4f5f0daab8c5e5feb
Version checksum
6427b73777bdf42f97b1f27446268b177aa0fa21b95657eac0ec61df8cf6aa2d
Authorship declaration
unknown; completeness unknown.
conditions
[
  {
    "collection": "conditions",
    "id": "story-bias"
  },
  {
    "collection": "conditions",
    "id": "missing-feedback-loop"
  },
  {
    "collection": "conditions",
    "id": "missing-voice"
  },
  {
    "collection": "conditions",
    "id": "silence-about-failure"
  }
]
depth
2
era
2005–2010
kind
failure
lessons
[
  "A story can outrun the evidence. The picture of children playing while water flowed raised millions and a 4,000-pump target before independent field assessments came in.",
  "Bad news traveled slowly. Field partners saw breakdowns early and a 2007 UNICEF assessment raised concerns, but the report stayed internal, and the first public acknowledgment came in 2009.",
  "When the people who will use a technology don’t choose it, mismatches follow. In some places a PlayPump replaced a hand pump that delivered more water per hour.",
  "Stopping a program and explaining why, in public, is how the field learns. It works best when it happens early."
]
place
Southern Africa
summary
A merry-go-round that pumped water as children played drew $16.4 million in pledges and wide celebrity support. Field reports later found many pumps broken, unused or slower than the hand pumps they replaced, and the backers stopped the rollout and said so publicly.
Exact archived Markdown body

Inert source text, including its original formatting. It is not executed as page markup.

## What happened

The PlayPump was a children’s merry-go-round attached to a water pump. As children spun it, it pumped groundwater into a storage tower, and advertising on the tower was meant to pay for upkeep. Its founder, Trevor Field, had installed hundreds across South Africa and its neighbors, and in 2000 the World Bank recognized the technology for innovation. FRONTLINE/World profiled it in 2005, and the story helped build enthusiasm among donors.

In September 2006, at the Clinton Global Initiative, Laura Bush, Bill Clinton and the philanthropists Jean and Steve Case announced $16.4 million to install PlayPumps across sub-Saharan Africa: $10 million from the U.S. government, $5 million from the Case Foundation and $1.4 million from the MCJ Foundation. A new nonprofit, PlayPumps International, set out to install 4,000 pumps by 2010, and celebrities joined the fundraising.

Trouble showed up in the field. Save the Children, a partner, heard on site visits that pumps were breaking down and that some communities were rejecting them. By late 2009, only 42 of its 80 planned pumps in Mozambique had been installed, and 13 of those were working properly. A 2007 UNICEF assessment in South Africa, Mozambique and Zambia raised concerns about safety, maintenance and effectiveness and recommended installing PlayPumps only at schools, but the report was not released publicly. A 2008 report for Mozambique’s government noted the technology’s merits but found installation and maintenance problems. No advertisers had come forward in rural areas to pay for upkeep, and the pumps delivered less water per hour than the hand pumps they had often replaced.

In September 2009 PlayPumps International acknowledged “challenges” and temporarily suspended new installations. It gave its remaining pumps to the charity Water for People, and in 2010 it stopped raising money for the technology. Jean Case published a personal letter on the Case Foundation’s website about what the foundation had learned. FRONTLINE/World, whose first story had helped make the pump famous, broadcast its own follow-up investigation in June 2010.

## Where it sits in the system

Clean water for a village is **prevention** (level 2) on the [depth scale](/method/#depth). What failed was not the goal but the system around it. A vivid image drew money faster than evidence could ([Story Bias](/diagnosis/story-bias/)). Problems seen in the field took years to reach donors ([the Missing Feedback Loop](/diagnosis/missing-feedback-loop/)). Some communities rejected the pumps, and some lost hand pumps that had worked better, a sign that the people who would use the water were not the ones deciding what to install ([the Missing Voice](/diagnosis/missing-voice/)). And a critical assessment stayed internal while fundraising went on ([the Silence About Failure](/diagnosis/silence-about-failure/)).

## What carries over

Pilot and measure before scaling, ask users before installing, and treat early warnings from field partners as data. The public admission at the end is the behavior a healthy system should reward, and the [Failure Archive](/record/failure-archive/) exists to make such admissions normal and early. What would make it so is [Open Problem 9, the Failure Commons](/open-problems/the-failure-commons/).
Cited evidence
Pinned source capture
Exact version fields and declaration references
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      "depth": 2,
      "era": "2005–2010",
      "kind": "failure",
      "lessons": [
        "A story can outrun the evidence. The picture of children playing while water flowed raised millions and a 4,000-pump target before independent field assessments came in.",
        "Bad news traveled slowly. Field partners saw breakdowns early and a 2007 UNICEF assessment raised concerns, but the report stayed internal, and the first public acknowledgment came in 2009.",
        "When the people who will use a technology don’t choose it, mismatches follow. In some places a PlayPump replaced a hand pump that delivered more water per hour.",
        "Stopping a program and explaining why, in public, is how the field learns. It works best when it happens early."
      ],
      "place": "Southern Africa",
      "sources": [
        {
          "note": null,
          "publisher": "Amy Costello, FRONTLINE/World, PBS",
          "title": "Southern Africa: Troubled Water",
          "url": "https://www.pbs.org/frontlineworld/stories/southernafrica904/",
          "year": 2010
        },
        {
          "note": "Summarizes the 2007 UNICEF assessment, the 2008 report for Mozambique’s government, PlayPumps International’s 2009 letters and Jean Case’s 2010 letter.",
          "publisher": "FRONTLINE/World, PBS",
          "title": "Timeline: The PlayPump Trail",
          "url": "https://www.pbs.org/frontlineworld/stories/southernafrica904/timeline_tw.html",
          "year": 2010
        },
        {
          "note": null,
          "publisher": "Daniel Stellar, State of the Planet, Columbia Climate School",
          "title": "The PlayPump: What Went Wrong?",
          "url": "https://news.climate.columbia.edu/2010/07/01/the-playpump-what-went-wrong/",
          "year": 2010
        }
      ],
      "summary": "A merry-go-round that pumped water as children played drew $16.4 million in pledges and wide celebrity support. Field reports later found many pumps broken, unused or slower than the hand pumps they replaced, and the backers stopped the rollout and said so publicly.",
      "title": "PlayPumps"
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  "subjectHash": "88662c2c0b2104a1a7f774fdfbbfa34fd27358c3479dceb4f5f0daab8c5e5feb",
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Timeline in recorded order

Public occurrence time and ledger recording time are different. A coverage baseline records what was present at capture; it does not invent an earlier history.

Events 1–1

Coverage baseline

Recorded order
9; sequence 1 for this record.
Public occurrence
Undated / no earlier occurrence asserted · undated
Recorded in ledger

Initial capture of current source wording; no earlier independent review or historical event time is asserted.

Observed baseline: version 1.

Exact event fields
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Review declarations

No public review declaration is recorded for this subject in this edition.

Dated public metadata observations

These observations record only the displayed metadata at inspection. A merge, closed issue or empty review list does not establish research or independent review.

github-pull-request · 2026-10-27T08:20:16.587Z

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github-pull-request · 2026-10-27T08:20:16.587Z

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github-review-list · 2026-10-27T08:20:16.587Z

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github-issue · 2026-10-27T08:20:16.587Z

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