Worked just fine with the Katadyn filter in the bag. That's the same configuration as my modle, the late lamented ULA gravity filter. For the Sawyer Inline, I have it spliced in the outlet hose about 2 feet below the dirty bag.

After my Sawyer squeeze turned out to be completely blocked this week, even though I had tested it with tap water at home the week before, I'm becoming a bit disenchanted with Sawyer, though. Spending two days boiling water for two, a liter at a time (I had enough so I didn't have to boil today), instead of fishing. was not my idea of fun!