Water Purification is needed to protect against water bourne infections such as cholera.


Chlorine is used as it removes almost all the pathogens in the water. However, the water is flavoured very strongly.


This is not as effective as chlorine, however, it does not flavour the water as much.


This provides immediate access to drinking water with no bad taste. However, it can be contaminated and very small viruses can get through.


Carbon is added to remove odours.

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