same trouble, no airlock activity whatsoever. I know its not an issue during primary but I will never use it for secondary. Its four ferments for me now with the same issue. Its tolerances are poor. Conceptually it is great , but frankly it doesn't give me peace of mind.
First of all, I just sampled the best home brew of my life. Azscoob a major brewery should be paying you royalties for this recipe. Thank you . I'm not going to reveal details from my tasting, just realize if your thinking of brewing this stop procrastinating ! Absolutely awesome!!!