I switched to a gravity filter (Katadyn basecamp) this year - I had to replace my old filter, the body of which had cracked - and I like it a lot. When I get to my campsite, I can fill the thing once, then I have all the water I'll need for the night and morning - and more. At lunch stops, it's nice to just hang it instead of pumping. And it uses the Hiker Pro cartridge which I have had good experience with in the past as reliable and easy to clean. I'd never go back to pumping. I took along the bottom half of a plastic 64 ounce apple juice container, which serves as something to pack the filter in, and as a scoop for when the water source is shallow. That worked out well in both roles.