Semi-zombie thread, but I just got around to downloading pictures. Here's a Sawyer Squeeze in gravity-fed "stand around with your hands in your pockets" mode. Takes a couple of minutes for a liter, several times faster if you make the effort to squeeze the raw water bag. The Sawyer bags have a rep for springing leaks, which is also my experience, and are best replaced. The Platypus bags have been to hell and back and are good after 20+ years.
Now, I've never tried it, but the system should be equal to the rigors of hotel room use.
