Aqua clone issues

[Bradisbon]

I've been having some issues with a new UVO Aqua clone. This isn't my first time rebuilding but I have no experience with rebuildable tanks.
I searched every relevant forum and thread and found no working solution.

The main problem is I get dry hits and burning despite trying several variations of cotton thickness, length, juice control, and air flow levels.
I'm using dual 7/8 wraps of 28g around a 18g needle with cotton.

The second problem is I can't seem to fill it without flooding it. I've tried open and closed airflow and the bell section is always tightened.
No matter what I get flooding and leaking out of the external air holes when I reopen them. After the flooding clears up the dry hits return.

 

[certus11]

I see juice on your bay, which may have been led down by the posts. That juice gets to the airhole and out they go...When done right you should be able to lay down, shake, and blow through your drip tip and see no juice coming out of your airholes.

Filling without leaking. Best method (takes some used to) is upside down. After tightening the parts back, do not close your airholes even if you enjoy a tight vape. Do that slowly over time.

Dry hits is always too much cotton inside your coil. I use just enough cotton for the two coils and 4 more strand of cottons on the sides to ensure I get just the right amount of juice in. The 4 extra strand of cotton also touch the base of the posts to ensure that the bay is always dry. I believe your don't have enough cotton for the juice holes but too much cotton inside the coils. If you choose not to go with the 4 strands wrapped method that i mentioned, you can always fill the juice holes with more cotton while making the main wick (the one that goes through your coil) thinner.

Here are some pictures, not the best pictures but should give you an idea. What you see is two nano coils at 1.7 ohm each with diameter about 1mm(fully coiled) so I can wick the inside(I built it like they would build nanos with cotton in RDA but mine is upside down because it has to be). Never dry, never flood, and the mod can be carried in pockets, laid down, shaken, blown into just fine without any juice getting out of the airholes.

 

[emus]

My aqua gave me a fit w/ leaking when new. Now it never leaks a drop. The tank must form a vacuum. The vacuum prevents leaks. If fill aqua and leave top off the entire contents will leak out; the thinner the faster. The top cap must have an O-ring to seal tank for vacuum. When I had problems I was using 100% PG which is so thin it would flood deck instantly. Now I'm using 20 to 40% VG.

Fill method is personal preference. I prefer top fill. I pour juice in from bottle; no dripper.

I prefer a cotton ball wick w/ slight resistance when pulled through coil. The wick must not be packed to tight in channels. Must find the 3 little bears just right wick density and thickness. YT vids may help.

 

[Gonzi]

I started a post yesterday about dry hits on my Aqua as well. Doing better today, a lot of people have shimed in to help.
http://www.e-cigarette-forum.com/forum/rebuildable-atomizer-systems/535224-aqua-clone-dry-hits.html