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Spit back with certain ejuice

Discussion in 'APV and Mods Discussion' started by Surfer369, Sep 18, 2018.

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  1. Surfer369

    Surfer369 Senior Member

    Sep 1, 2018
    I am not sure if this is a user error but I want to find what’s causing it and eliminate the issue.

    I tried a couple juice which are all 70/30 but look thinner than the ones I was vaping. These two new juices gave me spit backs, as I would try to vape I would get the liquid in my mouth and it’s a very unpleasant experience. I did notice this after I had filled the tank full? Using a uwell nunchaku
     
  2. Letitia

    Letitia Citrus Junkie ECF Veteran

    Supporting member
    Apr 2, 2017
    West Frankfort, IL
    70pg or 70vg?
     
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  3. Baditude

    Baditude ECF Guru ECF Veteran

    Apr 8, 2012
    Ridgeway, Ohio
    Why does my atomizer crackle&pop and spit hot juice on my tongue? | E-Cigarette Forum

    Flooding (or spitback) is a common occurrence in e-cigarettes. The definition of flooding is getting juice into the air passage of the tank. This can include any point between the mouth piece and the very bottom part that connects to the battery. Each tank has holes in that air passage, where the wicks passthrough. This is required for the device to work properly. Unfortunately, this opens up the possibility for flooding. The trick with flooding, is knowing how to avoid it. I’ll explain a little more, but a few common causes for flooding a tank include: improper filling, over filling, pulling too hard when hitting the device, and the temperature can even play a role and/or damage.

    Improper Filling: When filling your tank, you have to be careful not to get juice into the center tube of the tank. This center tube is the air passage. When you take a draw, air comes from the bottom of the tank, through the air passage and into your mouth. If you happen to get juice into this passage way, your tank is flooded.

    Over Filling: If you over fill a tank (specifically a top coil like the ones that come with the starter kits and gift boxes), the wicks can become over saturated and just like a rain cloud, they will leak into the air passage. Once this happens, you have a flooded tank. Leave some air space when filling your tank.

    Pulling Too Hard: As I mentioned the wicks absorb the juice in the tank. As you pull (suck) on the device, you cause a vacuum effect that pulls juice into the wicks. If you pull too hard, you can pull in more juice then the coil can vaporize. If this happens, the juice leaks into the air passage and you have a flooded tank. try a more gentle draw technique.

    Temperature: E-Juice is a viscous liquid. Which means that as it warms up, it will thin out. And in the opposite form, it will thicken when it gets cold. When it thins, it is more difficult for the wicks to hold back the thin juice. This usually causes the wicks to over saturate and, you guessed it, it will leak into the air passage and you have a flooded tank.

    Damage: There are o-rings and gaskets used that can wear out with usage. If certain ones fail or get lost, leaking will occur, in turn flooding the air passage and causing you to have a flooded tank. Other than accidentally losing something, damage can occur when its carried in a purse or a pocket or by over tightening the tank to the battery. Over tightening is a very common cause of leaking due to the damage it creates.
     
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  4. Surfer369

    Surfer369 Senior Member

    Sep 1, 2018
    Using 70pg/30vg. I think I may have over filled it. Should I swap out the coil and try a new one and see if it was the juice or overfilling.
     
  5. Baditude

    Baditude ECF Guru ECF Veteran

    Apr 8, 2012
    Ridgeway, Ohio
    I don't think you need to replace the coil. If you can put a Q-tip down through the drip tip and into the air chamber of the tank, that should remove any excess liquid in the air passage. Then take gentle draws instead of more forceful ones.

    Pg doesn't vaporize as readily as Vg, so that may be part of your problem, too. Any reason that you are using such a high Pg liquid?
     
  6. Surfer369

    Surfer369 Senior Member

    Sep 1, 2018
    I meant 70vg
     
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