I've read that a few owners of this particular Aqua v2 are having trouble with muted/flavorless pulls or dry hits. I was going to post this instructional in the "flavor this or kayfun v4" thread, where there was some discussion about the wicking of the Aqua v2. However, I thought that it might be better to start a separate thread, in case any new owners are having trouble and are seeking some help.
I'm no master coil-builder nor wicker-er! I've just found a wicking method that works flawlessly for me and would like to share it. I've had no leaks whatsoever, no dry hits at all, and insanely deep, rich, thick flavor from this build and wicking method.
I'm running a dual-micro coil with a total of 0.5 ohms and run it at 27W. I use 26ga Kanthal A1 and each coil is wrapped 8x around a 2.5mm cylinder. Nothing special at all about this.
Wick material is Japanese cotton. I split a square of the cotton so that it becomes 50% "thinner". I then cut the square into strips as shown, along the grain of the cotton. The width of each strip is around 10mm give or take 1-2mm.
Let's get on with it! Captions describe the image below them.
Japanese cotton strip.
Cut in two.
Each one is folded in half, length-wise, with one end twisted to a point.
Pointy-end fed through coil, then fluffed-out. It's important to note that the cotton should feel SNUG while feeding it through. Not too tight, but not too loose, either.
Cut the wick at an angle. Try to get your scissors as close to the coil as possible... maybe leave 2-3 mm between the coil and the cut-point. Angle your scissors to so that the blades are about touching the edge of the deck. This is to get consistent cut angles.
Another shot of the first cut. A bit blurry, sorry.
Do the same for the other side of the wick.
Here are both coils wicked. Shot from the top.
Prime the wicks with juice. I'm using 80VG juice. Notice that the "sharp" end of the wick fits nicely in the channel. You can't really see from this angle, but the sharp wick-end is not at all even "bursting out" of the channel. It's so thin that it comfortably just rests inside the opening, with room to spare.
All the channels wicked-up. If you can see from the far-left wick, it is not protuding out of the channel. Do not jam wick into the channel! A slight sliver of wick is all you need. (Don't worry, I wiped the excess cotton strands before capping it!)
Another top-down shot of the build.
After filling your tank with juice, wait at least 5-10 minutes before vaping. If you are not patient, and start vaping immediately after twisting the tank on, you will have extremely muted flavor! Do yourself a favor and do something productive that takes 5-10 minutes before vaping this after wicking. From then on, you will have a very rich, wet vape.
If you are having troubles with this tank, I urge you to give it another go, if maybe there is something different about my method and yours.
Good luck!!