The above report from Shawn is accurate. Jackstraw is a trickle that has a small puddle that you could pump or siphon from . Trailfork has a bit more than a trickle coming from the pipe . I’d estimate 4 minutes to get a liter . We used a nalgene to just scoop water from a puddle, poured it in my dirty bag, and then used my Sawyer squeeze to filter it . Hope this info helps!