After the initial set-up costs, the cost of using a WATA kit has been estimated at 0.01 euros per litre of concentrate, cleaning 4000 litres of water.
==Country Field Experiences==
The WATAsol has been supplied to partners and is being used in around 50 countries including:
Angola, Bangladesh, Benin, Burkina Faso, Burundi, Cambodia, Cameroon, Central African Republic, Chile, Congo-Brazzaville, Côte d'Ivoire, [http://www.antenna.ch/en/drinking_water/wata_drc_en.html Democratic Republic of Congo], Djibouti, Ecuador, [http://www.antenna.ch/en/drinking_water/wata_guinea_en.html Guinea Conakry], Haiti, India, Iran, Italy, Kenya, Laos, Madagascar, [http://www.antenna.ch/en/drinking_water/wata_mali_en.html Mali], Mauritania, Mozambique, Myanmar, [http://www.antenna.ch/en/drinking_water/wata_nepal_en.html Nepal], Niger, Reunion, San Salvador, Senegal, Sierra Leone, Sri Lanka, Sudan, Tajikistan, Tanzania, Togo, Uganda, Vietnam and Zimbabwe.