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Chlorine Dispenser

1 byte added, 13:14, 5 July 2010
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__NOTOC__
- Dispenser and valve are long lasting
- stimulates education about and improvement of hygiene and water treatment habits. <br>
- Dispensers cannot be easily manufactured by local community.
| con=
- Dispensers cannot be easily manufactured by local community.<br>}}
==History and social context==
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