Deep Springs International (DSI)
Gadyen Dlo is a chlorine solution to disinfect water, for Haiti region.
Gadyen Dlo, or “Water Guardian” in Haitian Creole, is a liquid chlorine product sold by the bottle for household water potabilization. This water treatment product is intended to remove/inactivate bacterial, viral, and some parasitic contamination from drinking water to reduce the transmission of water-borne diseases and incidences of diarrhea.
Rural households in Haiti.
Locally produced in Léogâne, Haiti; Machine-automated processing operated out of a house.
User can directly contact the manufacturer. The product is sold in Léogâne, Haiti via a network of 150 health workers.
Over 2,000,000 served
Included is one 8 ounce bottle with cap for dosing and instructions in Haitian Creole with illustrations. Other purchasing option is 1 gallon containers. Almost always, 5 gallon safe-water-storage buckets with spout are distributed for free.
See CDC training manual Module 7 for product schematic and training information
8oz bottle treats 700l water
The product can treat an average family’s water for 6 weeks.
In conjunction with proper household treatment and storage, tests have shown 80% reduction in water-borne diseases.
Global Health Institute and Sustainability Initiatives at Emory University and by the Eugene Gangarosa Endowment at the Centers for Disease Control and Prevention (CDC) Foundation.
If one family is using a container that is not covered, it will need to treat the water every 24 hours. If the container is covered and has a tap, the family only needs to treat it one time.
Filtration method and safe water storage system
Harshfield et al., “Evaluating the Long-Term Health Impact of Household Chlorination of Drinking Water in Rural Haiti“, Proceedings of the Water Environment Federation, Disinfection 2011, pp. 274-302(29)
• NSF / ANSI Standard 60: Drinking Water Treatment Chemicals: Gadyen Dlo is not specificially listed as complying, but dozens other companies selling sodium hypochlorite products for drinking water treatment are approved. This certifies that chemicals are safe at the maximum dose and that any impurities are below the maximum allowable limit.
• US Environmental Protection Agency (EPA) Registration: Gadyen Dlo is not registered with the EPA but sodium hypochlorite has been 1957, and the EPA issued a registration standard in 1986 saying that sodium hypochlorite products (with 5.25% – 12.5% chlorine) do not need individual registration review.
• World Health Organization (WHO) Guidelines for Drinking Water Quality list liquid NaOCl with concentrations between 0.5% and 1% as a point-of-use water treatment method commonly used to prevent diarrhea in developing countries and for travellers WHO Guidelines for drinking water quality.
World Health Organization Water Quality Guidelines.
Gadyen Dlo report by Pepahaiti
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