Changes

* Ferrocement tanks: US$26 - $50 per m3 storage depending on size (e.g. 11m3 for US$550, 46m3 for US$1,200). Experience from the RAIN Foundation seems to indicate a cost of between 40-100 Euro per m3 storage for ferrocement tanks (including everything like materials, transport and labour). Partial below-ground ferrocement tanks have also been made where part of the structure is underground and part is above ground - US$24.5 per m3 storage (e.g. 10.8m3 for US$265).* In Kenya in 1993, a 20 m3 tank with a roof cost US$ 420 (US$ 21 per m3). In the South Pacific Islands in 1994, 5.5–12 m3 tanks cost an average of US$ 50 per m3.