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Utilisation de la télédétection et de la modélisation du terrain pour l'identification des zones favorables aux forages manuels Remote sensing and terrain modelling to identify suitable zones for manual drilling in Africa

This set of presentation was given at the closing workshop in Dakar, 8 April 2015 of the UPGro Catalyst project : "Use of remote sensing and terrain modelling to map manual drilling potential in Senegal and Guinea" | »

Manual Drilling Compendium 2015 RWSN Publication 2015-2

Manual drilling refers to several drilling methods that rely on human energy to construct a borehole and complete a water supply. The various techniques can be used in areas where formations are quite soft and groundwater is relatively shallow.

Manual drilling can provide safe drinking water. The equipment can easily be transported to remote, or difficult to serve populations which would otherwise be left behind. The lower costs compared to machine drilling are appreciated by households, businesses and governments. Manual drilling also provides local employment.

Manual drilling methods are being used to provide water for drinking and other domestic needs at least 36 countries around the world. In some places, manual drilling methods are well established.

The compendium provides a useful overview for those wishing to further examine the impacts and challenges of manual drilling, and, more importantly, improve practices on the ground. It is hoped that the document will spur others to undertake fur-ther studies as well as research to document stories and analyse the promotion, uptake and use of manually drilled boreholes. In addition, the compendium should also enable those promoting manual drilling to realise that they are certainly not alone in their endeavours! | »

Handpump Standardisation in Sub-Saharan Africa: Seeking a Champion RWSN Publication 2015-1

Handpump standardisation is the formal or informal mechanism that governs the varieties of community handpumps used within a particular country. In a handful of countries this also includes stand-ard handpump designs. With over a million handpumps in sub-Saharan Africa and new installations every day, handpump standardisation is still vital for the policy and practices of governments and implementing organisations. While rural water practitioners are polarised about the future of formal standardisation, the extent of informal standardisation is of significant importance to the sustain-ability of handpumps across the continent. Of the thirty-five countries in sub-Saharan using handpumps, formal standardisation has emerged in fifteen through regulations (nine countries), and endorsements (six countries). However in the remaining countries, informal standardisation determines what handpumps are installed where, either through recommendations (fourteen countries), or de facto standardisation (six countries). | »

Handpumps: where now? A synthesis of online discussions (2012-2014)

In 2012, RWSN established Dgroups.org as its online electronic platform for membership and discussion. The groundwater and handpump groups have been among the most active communities. The number and depth of contributions has been rich, and several members have asked for a synthesis of the discussions. They main topics that emerged were:
1. Water Quality - particularly iron and pump corrosion
2. Procurement, Quality Control and Installation
3. Sustaining handpumps - what is the average lifespan of a handpump?
4. Handpump component failures and the need to redesign public domain designs
5. The politics of new pump designs: the Squirrel Cage Pump

Join the debate at on dgroups, using the links below. | »

Professionalising Manual Drilling: Guinea A country summary

Manual drilling was introduced into Guinea over the last three years. Previously there was no knowledge or experience of these technologies. About 50 manually drilled wells have been constructed to date, primarily for community water supplies. Although there are considerable funds available for further promotion of the technology, particularly through UNICEF, there is need to consolidate the experiences to date before moving on to another next phase of training and construction. It is also very important that the national government agencies responsible for rural water supplies as well as the local governments are given the opportunity to learn more about manual drilling technologies, including their potential and risks. | »

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