Technology

We know that no one technology, single approach or type of expertise will achieve universal access to water, sanitation and hygiene (WASH). This is why we use a systems strengthening approach. We identify and address barriers in behaviours, policies, processes, resources, interactions and institutions that weaken the WASH system, and block the achievement of our mission.

A strong system is one that delivers sustainable and inclusive WASH services to everyone in the community. The selection, installation and promotion of appropriate and sustainable technology is therefore an essential part of every WASH system.

Technology is not an isolated component and has links with many other elements. For example, we demonstrate good practice in the design and delivery of borehole-based water supplies, while also supporting governments to develop national standards to ensure these supplies are installed and maintained to a high standard.

Explore some of the technologies we use to deliver sustainable and inclusive WASH services to communities across the globe. 

Our Approach

With our focus on long-term, sustainable development, we use technologies and approaches that local communities and institutions can support after our work in the area.  

Any technology we use needs to suit the local financial and geographical conditions, and the technical skills of the community that will operate and maintain it. We aim to put in place technologies that use locally sourced materials and spare parts that can be purchased and transported easily.

We also work closely with local and national governments, who may have their own criteria for certain technology choices.

With all technologies, we evaluate the feasibility of each approach with the first aim of long-term sustainability. Each is evaluated on the basis of:  

• The availability of the technology and its materials and spare parts in local markets  
• The ability to match people’s needs and aspirations
• The ability to deliver cost-effective, long-term supplies without complex maintenance, expensive components or expensive chemicals
• Demand from local water re-sellers and water and sanitation agencies

Common types of technology WaterAid uses

Rural water technologies include protected hand-dug wells, boreholes, tube wells, rainwater harvesting schemes, protected springs, gravity-flow schemes, sand dams, infiltration galleries and community or household water treatment solutions.

Where pumping is required, we usually support the installation of hand pumps. Electric, diesel and solar pumps are sometimes used where there are clear plans for operations and maintenance, sufficient funds from users and local governments to cover these, and where spare parts and skilled technicians can be found locally.

In urban areas, we work with official water providers to help improve their supply network and keep it affordable for poorer residents.

Examples of sanitation technologies include simple pit toilets, ventilated improved pit toilets, dual pit toilets, composting toilets, pour-flush toilets and communal toilets with a septic tank. Communities and families are trained in all aspects of the correct use and maintenance of toilets. We also consider emptying and transport systems, which are particularly important in high-density settlements.

WaterAid often designs handwashing facilities as part of holistic hygiene behaviour change campaigns and ensures that these facilities are conveniently located, desirable and attractive to increase handwashing rates. We work with different representative organisations to ensure that older people, children, people with different disabilities and their care givers can use the facilities.

This list is not exhaustive, and we support innovation at the local level as well as efforts to develop new sustainable technologies.