Has anyone tried this system? I was at Dick's Sporting Goods looking for a Steripen and saw this. It basically does the same thing, which is purifies the water with UV light. I've never seen it discussed here. Did a search and didn't come up with anything. I know it's heavy but maybe the lid, which is where the light is, works on other type bottles. Here's a link: http://shop.camelbak.com/all-clear/d/1208_cl_1533