Changes

Analysis of costs for handpumps to the commercial '''Simple Pump''': [http://www.simplepump.com/APPLICATIONS/Developing-Nations/Real-Costs-TCO.html COMPARING SIMPLE PUMP TO OTHER PUMPS], by Simple Pump.

Tests were done on some handpumps that are documented in [http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0CCUQFjAA&url=http%3A%2F%2Fwww.wsp.org%2FUserFiles%2Ffile%2F418200734405_handpumps.pdf&ei=ESKHT7WlOtDRiAKv_qzYDw&usg=AFQjCNHavJgwIhMHXPdby7OV5PiucVA-3Q&sig2=mDpXSceP1rKcazbdG9RBNg A Sustainable Technology: Research and Development During Water Supply and Sanitation Decade], by UNDP - World Bank Water and Sanitation Program. Refer to the following pages of this document:

'''Bangladesh''' - The Tara Direct-Action Pump p. 89 and 90. <br>

* [http://www.rural-water-supply.net/en/implementation/public-domain-handpumps RWSN: Comprehensive information on community handpumps, including manuals and specifications for Afridev, Indian Mark II/III and Tara pumps]

* [http://www.practica.org/products/pumps/ Pumps]. Different kinds of pumps. [http://www.akvo.org/rsr/organisation/15/ PRACTICA Foundation].