Worldbank studies on hand pumps

the 1980's: UN decade of International Drinking Water Supply and Sanitation

The 1980's: UN decade of International Drinking Water Supply and Sanitation

1987 World Bank Publication test 70 hand pump models. UNICEF, Worldbank. Founding & funding HTN (now RWSN )

In 1987 a first and unique World Bank study on hand pumps was published.
"At that time the Ropepump was not rated very well - its design was also different" (Henk Holtslag, 2018).