Posted on October 16, 2012
I spent one of the last weekends of the year camping in the National Park with an out-of-town friend. It was great to catch up, but the next birthday gift she is getting from me? Her own survival water filter from this site. She experienced some altitude sickness and having to share my water supply with her was a little scary. Make sure the next time you head out for a long trip you have one packed so that you don't run into the same problems we did!