Speculation on my part but I find that the hose, rather than the bladder usually is to blame. Try filling the bladder, letting it sit and then drinking straight from the opening without the hose. If no "flavor" then the hose is your culprit.

If it's the container, I'd return for an exchange. CD is pretty adament the Platys don't flavor the water and I'd agree, from the several I've owned. Now the Dromedary bags are another story.

Cheers,

Originally Posted By ahawks
I received a Platypus Big Zip hydration bladder for Christmas and I was really excited because of all of the features it has. The first time I used it I didn't wash it out all that well and noticed almost instantly that there was a pretty bad taste to it. Thinking that it just needed a thorough washing I took it home and used soap and water and thought I did a pretty good job. Used it again and it still has a really bad plastic taste. It seems like it comes from the mouth piece and kind of goes away when its really cold (I used it while x-country skiing last). I thought the Platypus bladders weren't supposed to have any bad taste, did I just get a bad one or is it just something that is inherent of all bladders or is there a way to get rid of the taste?
Thanks in advance!
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--Rick