Hey All,

Been getting back into winter sports for the first time in years!!! It's great, and I'm loving every minute of it. My fiance and I just went snow shoeing today for the first time, it was -10 with the wind chill, 15 degrees without. I have been using an Eberlstock bag as my pack, and have for the first time started using a CamelBack water supply. I used it during the hunting season, and on one day I had slush start to form in the tube, and I was able to suck it through and keep the water moving. That day I was out for 7 hours with no problems.

But today in just over an hour and a half my water supply was completely frozen, and I couldn't get movement through the tube.

Any suggestions from the more seasoned winter sports people out there???