I've been looking for a reliable small filter that would double up as an outdoor filter and an emergency filter at the house. I've settled down for Katadyn pocket or microfilter due to good reviews it has received. Katadyn claim the cartridge can filter about 13 thousand gallons of water. Pretty impressive. It's also sturdy. Do any of you guys have any experience with it? Does it clog up easily? etc... Would you recommend something else?