evaluation of the BluePump in Turkana, Kenya Tim Foster Institute - - PowerPoint PPT Presentation

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Preliminary results from an evaluation of the BluePump in Turkana, Kenya Tim Foster Institute for Sustainable Futures, University of Technology Sydney Tim Foster, Brian McSorley, Juliet Willetts Le 7 me Forum du // 7 th Forum of the Rural

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Le 7ème Forum du // 7th Forum of the Rural Water Supply Network : Abidjan, Côte d’Ivoire (29.11.2016 – 02.12.2016)

Preliminary results from an evaluation of the BluePump in Turkana, Kenya

Tim Foster Institute for Sustainable Futures, University of Technology Sydney

Tim Foster, Brian McSorley, Juliet Willetts

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Le 7ème Forum du // 7th Forum of the Rural Water Supply Network : Abidjan, Côte d’Ivoire (29.11.2016 – 02.12.2016)

1: Introduction

Developed by Fairwater Foundation
Marketed as a more durable pump
Deployed by Oxfam in Northern Kenya
Design features:
Open top cylinder
Piston has no rubber seal
Heavy duty bearings
PVC pipes
Bottom support
Compatible with IM2 & Afridev pedestal

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Le 7ème Forum du // 7th Forum of the Rural Water Supply Network : Abidjan, Côte d’Ivoire (29.11.2016 – 02.12.2016)

2.Objectifs / Objectives

Is the BluePump a suitable rural water supply technology?

Operational Financial Social Technical

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Le 7ème Forum du // 7th Forum of the Rural Water Supply Network : Abidjan, Côte d’Ivoire (29.11.2016 – 02.12.2016)

3: Contexte / Context

Pop. density (per sq km)

6.9 Predominant livelihood Pastoral Annual rainfall (mm) 100-400

Avg. borehole RWL (m)

30 (up to 75)

Avg. pH

7.5 Maintenance provider Diocese of Lodwar Handpump technologies India Mk II, Afridev, Duba Tropic 2, BluePump

Turkana characteristics

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Le 7ème Forum du // 7th Forum of the Rural Water Supply Network : Abidjan, Côte d’Ivoire (29.11.2016 – 02.12.2016)

4. Méthodes/Methods
Data collected at 142

waterpoints

Operational performance
Technical issues
Water user perceptions
Waterpoint characteristics
Review of maintenance

records

Technology Applicability

Framework workshop

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Le 7ème Forum du // 7th Forum of the Rural Water Supply Network : Abidjan, Côte d’Ivoire (29.11.2016 – 02.12.2016)

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Le 7ème Forum du // 7th Forum of the Rural Water Supply Network : Abidjan, Côte d’Ivoire (29.11.2016 – 02.12.2016)

5. Résultats / Results (I)

61.8% 76.9% 41.7% 67.6% 0% 20% 40% 60% 80% 100%

Functionality rate

India Mark II Duba Afridev Blue Pump 0.8 0.9 1.3 0.4 0.2 0.4 0.6 0.8 1 1.2 1.4

Breakdowns per year

India Mark II Duba Afridev Blue Pump 255 305 167 285 100 200 300 400

Avg. operational days per year

India Mark II Duba Afridev Blue Pump 13.1 21.0 14.6 11.3 5 10 15 20 25

Avg. discharge (lpm)

India Mark II Duba Afridev Blue Pump

Results subject to a number

f caveats and limitations

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Le 7ème Forum du // 7th Forum of the Rural Water Supply Network : Abidjan, Côte d’Ivoire (29.11.2016 – 02.12.2016)

5. Résultats / Results (II)

74% 92% 69% 97% 0% 20% 40% 60% 80% 100%

Reliability

73% 75% 81% 69% 0% 20% 40% 60% 80% 100%

Discharge

56% 25% 73% 42% 0% 20% 40% 60% 80% 100%

Ease of use

% of users satisfied with…

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Le 7ème Forum du // 7th Forum of the Rural Water Supply Network : Abidjan, Côte d’Ivoire (29.11.2016 – 02.12.2016)

6. TAF Workshop

Uncertainty about where to procure BluePumps Maintenance service provider has the skills, tools and parts to repair BluePump Disagreement about viability of spare part supply chain BluePump 2-3 times more expensive than IM2 & Afridev

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Le 7ème Forum du // 7th Forum of the Rural Water Supply Network : Abidjan, Côte d’Ivoire (29.11.2016 – 02.12.2016)

7. Leçons apprises / Lessons

Learned

BluePump appears to break down less often than

India Mk II and Afridev

BUT 1 in 3 not producing water: more robust

technology does not supplant need for maintenance

Other key trade-offs: more difficult to operate &

higher upfront cost

Comparative analysis needs to consider differences

in age, depth, usage level & maintenance regime

Turkana conditions unique but similar results

from the Gambia

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Le 7ème Forum du // 7th Forum of the Rural Water Supply Network : Abidjan, Côte d’Ivoire (29.11.2016 – 02.12.2016)

Remerciements / With thanks to

Oxfam (Sepharinus Owino, Nicholas Sikenyi, Mark Nakalale and Robert Samal); University of Technology Sydney; all stakeholders and water users who participated in the assessment; members of the evaluation advisory group; and André Olschewski for his guidance on the TAF.

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Le 7ème Forum du // 7th Forum of the Rural Water Supply Network : Abidjan, Côte d’Ivoire (29.11.2016 – 02.12.2016)

Appendix I: Handpumps in Turkana

BluePump Afridev India Mark II Duba Tropic 2 Technical characteristics Operation Lever Lever Lever Rotary Depth range <80m <45m <80m <100m Open-top cylinder Yes Yes No Yes Rising mains PVC PVC Galvanised iron Galvanised iron Domain Private Public Public Private Supply chain Location of manufacturer Netherlands India India Belgium Location of suppliers Nairobi Lodwar, Nairobi Lodwar, Nairobi Belgium Buyers Oxfam, Practical Action County Government, Diocese of Lodwar County Government, Diocese of Lodwar Diocese of Lodwar

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Le 7ème Forum du // 7th Forum of the Rural Water Supply Network : Abidjan, Côte d’Ivoire (29.11.2016 – 02.12.2016)

Appendix II: Mean characteristics

f handpumps visited

Mean characteristics BluePump (n=71) India Mark II (n=34) Afridev (n=24) Duba Tropic 2 (n=13) Cylinder depth (m) 42 36 12 56 SWL (m) 27 21 8

Boreholes (%)

84.5 91.4 28.0 100 Age (years) 3.6 4.6 8.6 13.2 Distance to spare parts & technicians (km) 86 81 97 92 Electrical conductivity (μS/cm) 1897 1629 922 1062 pH 7.6 7.5 7.5 7.4 Diocese of Lodwar maintenance subscription (%) 34 41 21 85