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[[Image:safe_water_systems_icon.png|right|80px]][[Image:NaDCC.jpg|thumb|right|250px200px|NaDCC tablet]]
NaDCC, also known as sodium dichloroisocyanurate or sodium troclosene, is one form of chlorine used for disinfection. It is often used to treat water in emergencies, and is now widely available for household water treatment.
==Construction, operations and maintenance==
[[Image:chlorine tablet WHO.jpg|thumb|right|250px200px|Domestic chlorination using a chlorine tablet. Photo: WHO.]]
Each product should have its own instructions for correct dosing. In general, the user adds the correct sized tablet for the amount of water to be treated, following the product instructions. Then they agitate the container, and wait for the amount of time instructed on the package, normally 30 minutes (“contact time”). The water is then disinfected and ready to be used.
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Note: Program, transportation and education costs are not included.
==Field experiences==
==Manuals, videos, and links==