Ehpro Eciggity Billow V3
The Ehpro Eciggity Billow prior versions have a rock-solid history as the top RDTA. Adding new features like velocity style post, a new top filling design, and adjustable liquid flow to keep up with competition can be a challenge and a risk.
Was the risk worth it? There are some issues with the Billow V3, and we'll document them here.
In our initial testing, we ended up with juice pouring from the air flow holes. We determined it was a wicking issue ... achieving the proper wicking is a delicate balancing act with this tank.
On the initial wicking, within minutes of filling the tank, the juice all came out through two different locations: the bottom air flow holes and the edge between the air flow adjustment ring and the base of the liquid flow adjustment ring. More juice outside the tank than in it.
Ehpro is aware of the issue. They have posted an email address where users experiencing liquid leaks between the air flow and liquid flow rings to contact them for a possible solution. They posted a possible solution by suggesting replacing the O Ring ... suggesting it may be an isolated issue from an improper assembly.
I contacted them about the two separate leak issues and they responded promptly. Their recommendation was to add more wicking material. We did that, and increased the length of the wicks to insert them into the liquid flow "posts". We nearly crammed the cotton into that channel, beyond what we thought was safe – literally, expecting dry hits. That worked, however, and juice leaks through the air flow holes stopped (and without impacting flavor or cloud generation). Their support, however, made no mention or recommendations for stopping the leaking between the air flow adjustment ring and the bottom portion of the tank. We're exchanging communications with them now to resolve this issue. Our take on it is that the O Ring is smaller than needed to properly seal in that area.
One of the best features of the Billow V3 is the top filling. You can see it at the right.
There are two "colors" available. The brushed stainless steel at the left, and the black (in the middle) – that's the one we received for testing and review.
You can see the top fill feature at the far right. That's the same tank as the middle, with the top raised. It exposes a generously sized oval hole that easily fits even eye-dropper style tips. The O Ring is barely visible, but it does seal in the juice quite effectively. The top slides a bit on the rough side, but it does get a bit smoother with time.
The picture at the right also shows the liquid flow holes at the bottom of the glass tank. A slight twist and more or less of the liquid flow holes are exposed.
For our tests, we used dual clapton style coils with a total resistance of 0.27 ohms. The inner diameter of the coils is 2.8 mm, and we used Cotton Bacon organic cotton for wicking.
The build deck is a nice size. With the base at 23 mm, it's larger than most drippers and has a modified velocity style deck. The center area is blocked, but has an air flow hole.
The coil post holes are slightly smaller than 2 mm, but easily accommodates even clapton style coils and should be a breeze for twisted coils too.
At the bottom of the base, the air flow holes are raised. That should help minimize liquid leaking ... and I emphasize "should".
Wicking is a bit of a challenge. The challenge is tucking the ends of the wicks into the four holes. Pointed tweezers do not work well, we ended up using the flatter end of a pair of scissors. On our tests to "cram" cotton into those holes, we ended up using flatter style tweezers and a blunt toothpick to pack the cotton in there.
One of the challenges of wicking the Billow V3 is with coils that have large inner diameter. The cotton needed to fit in a larger inner diameter (2.5 mm and above) ends up being too thick to fit inside the covering shroud and contribute to some of the leaking issues. You also have to cautious about the thickness of the overall cotton so that the wicks do not get crushed by the cover. Crush them and they pull/push out on the ends that fit into the liquid flow holes and allow more liquid in than is needed (or wanted).
Get it right and you have a flavor and cloud generating machine. Flavor and clouds are equal to the Billow V2, perhaps even a bit better.
So, what’s the verdict? Is it worth it?
The Ehpro Eciggity Billow V3 is an outstanding tank, easily among the top three RDTAs available at this writing (May 05 2016). The top fill design is a pleasure to use ... but overall, you pick this tank because of the oustanding flavor, excellent cloud generation, and convenience. In all three, the Billow V3 meets expectations. Our only outstanding gripe with the Billow V3 is the slight amount of juice leaking between the air flow adjustment ring and the base of the tank. Is it recommended: NO IT IS NOT. I have described questionnable support in this extension of the review: http://www.kickbuttandvape.com/mizers/rebuildable-atomizers/review-ehpro-billow-v3/questionnable-support/
What’s in the box?
- Ehpro Eciggity Billow V3
- Instruction sheet
- Spare glass
- Bag containing cotton and premade coils
- Bag containing allen key, spare grub screws, O Rings and seals
Our initial tests and five wicking attempts to prevent leaks was not that great. We used increasing amounts of cotton with increased density of cotton in the four juice holes. It turns out that we needed even more cotton and far more dense packing in those juice holes to stop the leaking. We've got it right now, the leaking through the juice holes has stopped. We still have the issue of slight amounts of juice leaking between the air flow adjustment ring and the base of the tank. Check again, we'll report on a solution when we get one.