I've got an old 20 liter taper from Sealine that has that goofy passive vent that never worked. I would love to get one with the vent on yours.Looking for a Seal Line 20L tapered dry bag. I think they made a few different designs of the years. The one I have is a Kodiak 20L, similar
That's the same reason that the passive valve didn't work for me. So based on your experience it's safe to say that I would be no better (maybe worse) off. Thanks for the input.it didn't work well, sleeping bag stuffed into the bottom formed a seal and didn't allow air out. Then the keeper broke and i was worried about losing it. Any vent really seems unnecessary; just do the "one roll and squeeze" technique, works just as well in my experience.
Btw, just visited your blog; your latest post had me in stiches! The G.I.F. and type 3 fun; sorry to laugh at your discomfort!