I have been reading through some older threads. Circa 2008-2012 about gravity filters vs a steripen. I have used the steripen now since 2009 and never had an issue. I don't do long trips, but I love it for 1 to 2 day trips. However, I was looking at the 4L Platypus gravity works and for 10.5 ounces it looks like it would be nice for trips with 3 people. Anyone using it these days? Anyone have a reason not use it? I love the simplicity of the steripen but the battery thing has always worried me. I tend to buy new batteries likely before I need to.
