Top positive review
37 people found this helpful
Great for Trekking
on April 30, 2014
I personally used these for a two month journey through Central Asia that at one point involved two weeks without bottled water (during trekking, traveling). I used these tablets on water I gathered from streams and occasionally from water gathered from wells that looked suspect (i.e., from the plumbing in people's homes). I drank water of various colors (brown, blue and clear), and I never got sick once, which I think proves the authenticity of these tablets (or that I am lucky).
I cannot comment on the taste of the water, because typically the taste of water was the last thing on my mind. If you are thirty, you will drink it. That said, I do not remember the tablets ever causing a strongly undesirable taste (when I used it on water from people's homes). The only time I noticed a pungent taste was when the water was noticeably foul looking, because it was the only source I could get. Ironically, the water I suspected most came from a crap hotel in China that accepted Pakistani rupees (no ATM in town). I am quite sure the taste was not a side-effect of the tablets.
A few notes:
I had a 2-L Camelback (technically Platypus) I stuck two tablets in and a 1.5 L plastic bottle (the disposable kind) that I stuck only one tablet in, since I figured the tablets had a safety factor. I probably filled the bottle 1.3-1.4 L's up.
I waited at least 4 hours before drinking after dropping the tablets in, and would alternate with my Platypus/bottle. In one instance I only waited 2 or 3 hours for the water in my Platypus (which had two tablets), but the water "looked fresher."
The tablets are highly portable. I stuck them in my mini-first aid kit.
They are significantly cheaper than other alternatives, and protect against virtually everything. You also do not have to worry about iodide poisoning with these.
For these reasons, I prefer these tablets to others, even if there is a four hour wait. Keep the iodide tablets for emergencies, and use these tablets for more "regular" use.