Closing off your airflow when refilling tanks. ???

[Cliffyboy1962]

I got the Griffin 25 out of the box and set it up last Friday. Coiled wicked and filled her up with some lovely aerovape macaroon.... forgot to close the airflow at the top. 2 mls or so of juice poured straight out the bottom airflow. "Balls".

Just looking at the pictures of the Griffin 25, it looks like the TOP airflow is just supplementary air pulled in through the sides of the top cap, just to give the draw, a more airy feel like on my new Vaporesso Gemini (in fact it looks identical)

IF that is true then these TOP airflow holes can, IN NO WAY, interact with or have any effect on, Juice leaking out the bottom of the tank.The Juice would have had to get past your wicking, onto the deck and down through the Deck airflow holes. The deck of your RTA is at atmospheric pressure as it is open to the chimney. You can't change that. You must have wicked it too loosely ?

Forgive me if I am wrong. Just trying to 2nd guess what happened.

P.S. I just looked at the number of posts you've made and I am guessing I most probably am wrong.

P.S P.S. Just watched the first 30 seconds of a griffin 25 review and Mike vapes said "Top airflow, and not the cheesey type that just takes air from the top, the proper type that gets its air from the coil"

oops. Sorry. Will watch the whole review now.

Having looked at the detailed drawings on the Geekvape website, I cannot see how shutting off the top airflow could possibly affect the juice getting from the tank, onto the deck and down through the bottom airflow holes. The top airflow is just another chimney around the outside of the main chimney and ends up on the deck, just next to the main chimney. When you suck, the air comes in through the bottom airflow holes and down through the seperate top outer chimney.

In fact, looking at it, I would go as far as to say, the air coming in from the top airflow, just goes straight back up the main chimney and doesnt draw any extra air across the coils, but just adds airiness, like my cheesey Vaporesso.

And just one more thing. When you filled her up, didn't you have to remove the whole top cap section anyway ? This would render any discussion about top airflows being open or shut completely irrelevant ! Just saying.

 

[GrimJim]

I have been vaping for a year now and one of the first things I remember picking up on was

"You gotta close off your airflow when refilling your top fill tanks"

When I first heard this I thought "Huh ?, what could that possibly do ?"

Well to cut a long story short, I sat and thought about this many times and kept coming up blank. Some people said "when you top fill your tank, the vacuum in the top of the tank that is helping stop your juice from moving through the juice holes, into the airflow section, is lost and closing off the airflow will somehow help this"

I thought "OK but that doesn't make any sense because the air pressure on the airflow side will not change regardless of airflow shut or open because the whole section is open to atmosphere, at the top (chimney end)"

Then I thought "maybe if juice leaks through into the airflow section, closing the airflow holes/slots will stop it coming out of the tank" yeah but only until you open them again, then it would just pour out anyway.

So please put an end to my misery and pain, explain to me why this is recommended and what it achieves because it is lost on me.

I closed off my airflow at first, but I kept forgetting to do it, and after a week or two I just gave up as forgetting had never caused me any problems.
I've used a few different tanks since, If I have juice flow control then I will turn that off as I figure it's there for a reason, but the airflow I never bother with and it's never caused me any problems.
If you think about it, some tanks out there don't even have airflow control. They just have permanent wide open holes.

 

[Cliffyboy1962]

I closed off my airflow at first, but I kept forgetting to do it, and after a week or two I just gave up as forgetting had never caused me any problems.
I've used a few different tanks since, If I have juice flow control then I will turn that off as I figure it's there for a reason, but the airflow I never bother with and it's never caused me any problems.
If you think about it, some tanks out there don't even have airflow control. They just have permanent wide open holes.

Having and using juice flow control to prevent deck flooding makes perfect sense and I use it for that, on the tanks I have got with that feature. Otherwise, you just gotta rely on your wicking to prevent flooding. Which it usually does.

 

[eyeball kid]

Just looking at the pictures of the Griffin 25, it looks like the TOP airflow is just supplementary air pulled in through the sides of the top cap, just to give the draw, a more airy feel like on my new Vaporesso Gemini (in fact it looks identical)

IF that is true then these TOP airflow holes can, IN NO WAY, interact with or have any effect on, Juice leaking out the bottom of the tank.The Juice would have had to get past your wicking, onto the deck and down through the Deck airflow holes. The deck of your RTA is at atmospheric pressure as it is open to the chimney. You can't change that. You must have wicked it too loosely ?

Forgive me if I am wrong. Just trying to 2nd guess what happened.

P.S. I just looked at the number of posts you've made and I am guessing I most probably am wrong.

P.S P.S. Just watched the first 30 seconds of a griffin 25 review and Mike vapes said "Top airflow, and not the cheesey type that just takes air from the top, the proper type that gets its air from the coil"

oops. Sorry. Will watch the whole review now.

Having looked at the detailed drawings on the Geekvape website, I cannot see how shutting off the top airflow could possibly affect the juice getting from the tank, onto the deck and down through the bottom airflow holes. The top airflow is just another chimney around the outside of the main chimney and ends up on the deck, just next to the main chimney. When you suck, the air comes in through the bottom airflow holes and down through the seperate top outer chimney.

No the airflow runs down to the coil. It's not a budget slipstream style. Why ?, as above, none of the above who knows but I've had enough tanks over the years to know that if you have a leak when filling, close the airflow and unless it's a bad seal or misplaced wick it fixes it. Even a stock coil tank like the cleito can wick the juice straight out the airflow if left open when filling. Who knows. Maybe that small amount of trapped air pressure makes all the difference. As long as it works.

 

[Cliffyboy1962]

No the airflow runs down to the coil. It's not a budget slipstream style. Why ?, as above, none of the above who knows but I've had enough tanks over the years to know that if you have a leak when filling, close the airflow and unless it's a bad seal or misplaced wick it fixes it. Even a stock coil tank like the cleito can wick the juice straight out the airflow if left open when filling. Who knows. Maybe that small amount of trapped air pressure makes all the difference. As long as it works.

Thanks for replying. I must be doing everyone's head in, whinging on about the why's and wherefore's of airflow and air pressure. I was an engineer as my career and I can't stand not knowing how stuff works. This kind of thread helps me get it out of my system.

You see, when you say even a Cleito can wick it's juice straight out of the airflow, if you leave them open confuses me. I have a couple of Cleitos and I have never closed the airflow when refilling and that has never happened so what caused that to happen ? I just can't help myself. I need to know.

 

[Richy]

Thanks for replying. I must be doing everyone's head in, whinging on about the why's and wherefore's of airflow and air pressure. I was an engineer as my career and I can't stand not knowing how stuff works. This kind of thread helps me get it out of my system.

You see, when you say even a Cleito can wick it's juice straight out of the airflow, if you leave them open confuses me. I have a couple of Cleitos and I have never closed the airflow when refilling and that has never happened so what caused that to happen ? I just can't help myself. I need to know.

I mentioned earlier too, my two cleito's have never done that either or my brother's two, weird

 

[eyeball kid]

Thanks for replying. I must be doing everyone's head in, whinging on about the why's and wherefore's of airflow and air pressure. I was an engineer as my career and I can't stand not knowing how stuff works. This kind of thread helps me get it out of my system.

You see, when you say even a Cleito can wick it's juice straight out of the airflow, if you leave them open confuses me. I have a couple of Cleitos and I have never closed the airflow when refilling and that has never happened so what caused that to happen ? I just can't help myself. I need to know.

I find viscosity of liquid an issue. This does my head in. We have come to measure the viscosity by vg/pg ratio. But a 70/30 (vg=70) liquid from say rejuiced is pretty thick old stuff yet a 85vg/15 juice by Californian liquid makers savage is far less viscous than the rejuiced liquid. Obviously it's down to the quality of vg but it throws "will this ratio juice work with my coil" out the window as unless I've actually tried the juice I don't know. I've found one of my favourite juices 13 sins jack is a bugger for draining through a new cleito coil. Same goes with manabush in a fresh clean recoiled nautilus.
It's time to get your thinking cap on.

 

[pete146]

I've had a Triton 2, Zeph 2, Crown 2, Baby Beast, Fumytech Navigator, Cubis - I have never ever closed the airflow on any of them, and they have never leaked when filling.

They have leaked in use, but never when filling (or straight after).

I work on the premise that if they leak, it's because I accidentally got juice into the chimney

 

[Cliffyboy1962]

No doubt viscosity must come into the equation relating to "will my coil flood or not ?" but I guess there is a lot more at play in addition to this, including coil design, tank design and perhaps refilling method.

Also worth mentioning that temperature will affect viscosity.

 

[eyeball kid]

No doubt viscosity must come into the equation relating to "will my coil flood or not ?" but I guess there is a lot more at play in addition to this, including coil design, tank design and perhaps refilling method.

Also worth mentioning that temperature will affect viscosity.

Tell me about it. I can confirm that high vg juice is not vapeable at minus temperature. If I'm in the workshop during winter 50/50 juice is my juice of choice.