RWSN has maintained international standards for the public domain handpumps since 1992 and provided extensive technical support to many national governments, NGOs and the private sector to enable decisions to be made regarding handpump standardisation, raise manufacturing standards and build skills and systems to improve handpump operation and maintenance.
If you have a limited internet connection, then we have a CD-ROM with all the handpump specifications and manuals - contact the Secretariat for details.
The Afridev Pump is a conventional lever action handpump. It is designed for heavy-duty use, serving communities of up to 300 persons. The maximum recommended lift is 45 m. The Afridev Pump is a public domain pump defined by RWSN specifications. The Afridev Pump is fully corrosion resistant, easy to install and has excellent potential for community-based maintenance.
The Afridev Pump with a Bottom Support System (BSS) is a technology that uses a reinforced version of the Afridev Pump together with a Support from the end of the borehole (BSS). It is designed for water lifting in low water table areas and the maximal lift recommended is 80 m. The Afridev Pump with BSS is a public domain pump defined by RWSN specifications. The Afridev Pump with BSS is fully corrosion resistant, relatively easy to install by pump mechanics and can be maintained by the communities.
The Bush Pump is a robust conventional lever action handpump, developed and standardised in Zimbabwe (SAZ 881:2004). It is designed for heavy-duty use, serving communities of 300 persons. Three different cylinders are available, the smallest one extend the range to a maximum recommended lift of 80 m. The Bush Pump is not corrosion resistant. It requires special skills for installation as well as for the maintenance; it is not a VLOM pump.
The BluePump is a lever-action reciprocating handpump that is intended to be a more rugged alternative or replacement for an Afridev or India Mark II/III. It can reportedly pump from a deep as 100m. Around 500 BluePumps are currently in operation.
The BluePump was developed by Fairwater Foundation (Netherlands) and is manufactured by Boode B.V. (Netherlands) and is availale in Cameroon, Burkina Faso, Central African Republic, Gambia, South Africa, Namibia and Tanzania.
A pump for drinking water and limited use for irrigating gardens.
The Canzee pump is a direct action pump initially developed in New Zealand. It uses a simple pumping principle. It consists of two pipes, one slightly larger than the other. At the bottom of each pipe is a non-return valve. The pumping movement raises and lowers the inner pipe. The outer pipe remains still. When the inner pipe is raised it lifts the water contained within it. The atmospheric pres-sure pushes more water into the outer pipe. Each stroke lifts the water in the inner pipe to the top until it runs out through the spout. The pump is self-priming. A thin film of water between the two pipes ensures they do not touch: the pump lubricates itself. The Canzee pump is designed as family pump for serving user groups of about 100 to 150 people. It can be used for irrigation of family gardens. Like all direct action pump the operation is not ergonomically favourable, therefore prolonged pumping is not possible.