DCT MAP Tank Issue (Burnt Carto)

[gheebee]

Every time I have to change the cartomizer in my DCT MAP Tank the same thing happens, I put the new carto in, not enough juice wicks to the top of the filler, and I get a burnt taste. The cut is the exact same size as all the others and it's like 4 out of 5 do this while 1 will finally work. I've tried making bigger cuts and this worked but then the draw was not tight enough for it to be enjoyable. I can work around this buy adding juice to the top of the cartomizer but then that's annoying to do and defeats the purpose of the tank. Can anyone think of what I might be doing wrong here? I bought 25 cartos and so far I've used 1 and thrown away about 6 because of this.

edit: I should have mentioned, adding juice to the top of the carto only fixes the problem until the juice that was added is vaped, it never takes very long for the burnt taste to come back no matter how much I put.

 

[jacquelyn]

How long are you letting it sit before you vape after you fill? I always top the carto when I first start. Also I have 2 holes not one.

 

[JeffKlok]

A.let the liquid soak for a bit,5 or so mins on a new carto.Don't forget to take primer puffs

 

[Huffelpuff]

You may also want to post what type of carto you are using. I've had really good results w/ Boge - not so good results w/ some others. Also check the voltage that you are vaping at and the ohm rating for the carto - just to rule that out as a problem. Other factors could be the placement of the hole (make sure juice is flowing and not obstructed) or using a heavy vg juice that will require additional or larger holes.

 

[JeffKlok]

Also if you could mention what juice you are using.if I use my DIY coffee or 'ccino the coils are gunked in one fill.as for vg content I have made and used 60% vg mixes with the stock hole.just have to take primer toots

 

[tj99959]

You might find this vid interesting. Putting the top cap back in the tank compresses the air & juice forcing juice into the new carto.
J Tank Filling - YouTube

Otherwise prefill the carto before you put it in the tank. The condom method works fine for this.

 

[gheebee]

Thanks a lot for the responses! Unfortunately I've tried more or less everything mentioned on my current carto and ones I've tossed with no success, this one sat for about 40 minutes before I used it and in the first minute or two a good 25 – 30% of the juice in the tank had been absorbed into the carto. To fill in some of the information I neglected to include in my first post, these are Smoktek dual coil cartos with 1.5 ohms (actual for the one I have now is 1.6) being primarily used in the 4.1 – 4.4V range. The juice I'm using is actually very thin and light in color, I think it's 100% PG or close to it.
These are actually the only brand of dual coil cartomizer I've used in this tank so I'll be sure to try another brand sometime soon, like Boge. I've seen some negative reviews of Smok Tech products but I initially bought 5 and all were good except for one that leaked a little after a while so I went and bought more of the same and cut them the same as the first batch but this time around things are not nearly as good. Maybe I will get a punch and try it to see if it works better than cutting.
I love this setup when it's working right, it vapes better than anything else I've used, but I gotta get it to work consistently.

 

[JeffKlok]

Are you using the flanged cartos?

 

[gheebee]

Nah, I tried those and I had this problem even worse with them, even after cutting them.

 

[gheebee]

I dropped the voltage down to 3.7 and the taste is either gone or very faint but I don't like the voltage that low, the vapor is a lot lighter. I think it's a juice wicking issue because dripping on top of the filler makes it go away for a while but I really can't see what is different between this carto and another of the same that doesn't do this at 4.1+ volts. I know some from these boxes have been 1.5 ohm, 1.6 ohm, and 1.7 ohm, I always check when I put a new one on, but I know I have had cartos that work at these voltages with all of those resistances without giving a burnt taste.

 

[tj99959]

Did you know that Smoke Tech also makes single coil cartos that are the same length as the duals?
I still havent met a dual coil carto that I liked.

 

[gheebee]

I knew they made single coil stuff but not that they had them in the same size as the dual coil cartos I have. The first box I got did say "dual coil" on it but it was a different box, it was a plain white box with the ohm and coil information on 2 small stickers; the 5 boxes I ordered after (same store, same item which was listed as a Smok Tech product) were black and had almost the same stickers but also had information printed on the box. I'd post a picture but my camera actually broke last week. :/

 

[jacquelyn]

It is possible the 1.6 ohm are the problem. Even at lower volts. I use 2.0 and sometimes it taste burnt. I use dual coal 2.0 and 2.5 and at 6 volts taste great (2.5 not the 2.0)

 

[hairball]

First off, the cut in the carto has nothing to do with draw. It's only for wicking purposes. Secondly, you should top the carto off after replacing the old one. It's even better if you completely fill the new carto before inserting it into the tank. When you vape, you should see a little bubble come up...then you know it's wicking properly.

 

[gheebee]

Well, I don't know what to say... after hours of playing with this thing (topping off the carto, adjusting voltages, topping off the tank) it finally seems to be working a lot better than it was before at 4.1V. I hear you all on topping off the carto but are you supposed to need to do it so many times? My assumption was that, normally, you'd only need to do it once or twice but I must have done this a good 7 or 8 times in addition to other things. With the carto I'm using right now and previous ones that did the same thing, when I top off or completely fill the carto it will work but only for a little while before the burnt taste returns. I just don't understand why some work fine after a few minutes of being left to sit after being topped off and others take hours (about 7 for this one, I gave up on the others after an hour or two so maybe they would have worked too...) to work right like this one did. I mean you'd think that getting all the filler completely soaked by filling would fix anything like that right away but in many cases it only works temporarily.

 

[classwife]

Moved to Atomizer, Cartomizer and Tank Discussion

 

[gheebee]

Sorry. I was thinking of putting it here but then I figured the answer would turn out to be something really basic I was doing wrong so I went with the other one instead.

 

[gheebee]

Well, I spoke too soon on that last carto; shortly after I posted that it went right back to doing what it had been doing all day. I never had one work that long and then revert back to doing that but I decided I'd had enough, reclaimed all the juice I could, and threw it out. I took another I had cut and added another cut to the other side of it and then I pre-filled it and put it in the tank. Everything seems to work great now but I'm still really curious about the last one and all the others that didn't work. I mean I didn't pre-fill the others but I did fill (overfill, in some cases) some of them with a syringe after they tasted burnt so I don't see how what I did was much different and why they went back to tasting burnt. Assuming it may just be the cartos, I'd definitely be willing to order some other stainless, dual coil cartos if they would fit a MAP Tank (9x45mm).