I used AM for the first time on a recent summer trip. I normally don't treat water, but I took my teenage daughter with me and I wanted to set a good example.
However, I set a BAD example by not trying out the AM before we left!
In my defense, I have not read of anyone else complaining of this--the TASTE! Icky!
And I know it wasn't me, as my daughter complained about it as well. The water tasted sour, sort of like lemon, but more tart. The only way we could drink the treated water was by adding drink mix, we just couldn't get it down, no matter how thirsty we were (and it was HOT!). This made it more risky to treat the water, as we didn't want to drink it, than it was to just drink the untreated water, in my opinion.
A couple of times, when my daughter wasn't looking, I filled my bottle up in a stream and drank the water down...so much better than AM!!!
Do other chlorine-based water treatments have a flavor as well? Are my kid and I the only ones who've noticed this?