Aqua V2 issue:

I find some juice in the blue circle area and the air hole, and I am not sure if this is leaking or not (as I have heard, Aqua V2 was 100% leak proof).
For the juice in the blue circle, can that be because of the o ring inside (too small, too thin, or something like that)?
For the air hole, did I put too little cotton in my build?
Or is there any other reason causing my issue?
Thanks.

I find some juice in the blue circle area and the air hole, and I am not sure if this is leaking or not (as I have heard, Aqua V2 was 100% leak proof).
For the juice in the blue circle, can that be because of the o ring inside (too small, too thin, or something like that)?
For the air hole, did I put too little cotton in my build?
Or is there any other reason causing my issue?
Thanks.