OK this is really, really, really preliminary. I swapped out the o-ring on top of the base that the air/juice control slides over. I looked in the bag of goodies included with the Boreas and found one that is slightly thicker. Now this is just the first tank so I will need to fill this a couple of times and see if that stops the leaking. I'll get back to you guys later on after a few tank fulls to see if this corrects the problem.
Check your deck where it slides into the chamber. The deck has a raised notch that fits into a recess of the chamber.

The bottom cap will actually fit on it if it is not lined up correctly. Mine was not lined up correctly on both the decks that I used and I didnt leak but that is not to say its not what is causing your leaking problem.
BTW Grimmgreen gave the Boreas a bad review today. The peeps from that other forum slammed him so hard he shut off any further comments on his review




