I've had my Polar Pure for around 4 months now, and used it on my last 4 day backpacking trip. It worked great.

Speaking of repacking Polar Pure, does anyone know what I can use for a replacement cap? I usually store it in my gear bag in my Jeep and the other day I went to my bag to fetch a new set of lithium batteries and noticed everything that bag compartment had turned brownish/orange. The Polar Pure didn't leak but I'm assuming it was due to effervescence or evaporation. Even when I received the Polar Pure as new, the packaging around the cap had turned slightly brown and smelled like iodine. Is this common?

I've resorted to storing it now in a ziplock bag so I don't iodine coat all the other gear in my bag.