would it be helpful to have a water disinfecting system that uses ultraviolet light (like

Question

We are going for a 29 day group tour to China and Tibet.  As a former packbacker, I have used various systems to make stream water safe for drinking.  Is a UV-C sterilizing pen a good alternative to buying mineral water? Thanks.

Henry · Answer

Diane, ultraviolet light water disinfecting system is useful. However, I still don't think it's a good idea to drink stream water, especially for a person who goes to a totally different area she has never been there before. If possible, I think you'd better drink bottle water instead of stream water for the sake of your health.

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Would it be helpful to have a water disinfecting system that uses ultraviolet light (like SterPEN)?