Originally Posted By aimless
I'm generally filtering clear water sources on my hikes, but I've never had my Sawyer mini clog up to where it was anything but a tad bit slow. I'm wondering if you're using it as a gravity filter or if you're using the method of squeezing the dirty water bag to force the water through, which is what I do.

I'm filtering water from trout streams and a filter tested before heading out can clog up on the first bottle to the point where it's dripping out even when squeezing hard enough to get hand cramps. I think it's large particulate doing it and might need to pre filter. Alternately, could just bring the plunger.