Cthulhu RTA V2 (similar posts to the velocity rda)

[rhm3769]

Does anyone with the v2 yet own the v1? From experience with the v1, leaks from top filling, most of them at least, were due to issues with the wick length going into the channels....
Admittedly, I could never get the wicking right to avoid top fill leaks, I only top fill after installing a new build on the v1, bottom fills are faster for me anyways....
I'd imagine there's a similar trick with this one....

And I got the same message from Smog....

 

[HolmanGT]

Does anyone with the v2 yet own the v1? From experience with the v1, leaks from top filling, most of them at least, were due to issues with the wick length going into the channels....
Admittedly, I could never get the wicking right to avoid top fill leaks, I only top fill after installing a new build on the v1, bottom fills are faster for me anyways....
I'd imagine there's a similar trick with this one....

And I got the same message from Smog....

"rhm",

You are not going to like this but none of the top filling tanks can work properly.

If you have a tube the is open at the bottom 'the air intake' and you have an opening in the top of the tube 'the drip tip then you close off the bottom air intake how do you shut off the air entering the same space thru the drip tip. Answer: you don't.

Ergo it will always leak unless you stuff the juice channel absolutely full of wick material. Before you start yelling at me just think about it for a minute then yell at me all you want.

One trick that helps is to close the air intake vents and then make a good seal over the drip tip with your finger. This helps but is not a total solution of which there is none except to fill from the bottom.

 

[xenxenogear]

I preordered this because of the unique deck design that appears to make it simpler to build. I'm still pretty new to rebuildables and only owned a clone Orchid V6 so far and hate hate hate the 4 post design which takes me 2 hours each time to coil - and the coils always end up spaced out and bent wildly and I ALWAYS get leaking out of the bottom with that Orchid V6.

I preordered this because the design makes it easier. But now based on reports the juice filling will be super complicated - moreso than the Orchid which is a bottom fill. :/ Oh well, probably the last time I preorder a tank.

Hopefully I'll somehow find better luck with it when I get it than others have experienced.

 

[52anddone]

I've just done a re-wick using the method I used for my Billow V2 and it's wicking amazingly. My advice is:

• Very little cotton, just enough to fill the top part of the juice channel, none at all in the channel where it gets a little thinner
• Form a barrier of cotton at the back of the deck, where the small gap between the ridge of the airhole and the posts is, to stop any juice getting down there

I did this video a while ago for the Billow V2 and the same principal applies to this:


BTW - do not use the wick ring!! I have had to cut mine off with wire cutters as it got completely stuck! I think a bit of cotton had got stuck in the threads

Hope that helps

WoW , That was a Most Excellent Video YorkyBoy, Thank You for the time you took to do it.

I was so wishing that you could have given me a MM measurement on the width of the Mugi strip that you cut off to use in the coil. I'm a numbers kind of guy you know. I will make a link to this video to save for reference so I can come back to it to make sure I get all the little points and don't miss any crucial detail, after all the Devil IS in the details you know, and You seem to have covered them all quite thoroughly . Again, Thank You for the video, I WILL be using it for my Cthulhu V2 builds, that is, when I finally get mine, Still waiting though . Happy Trails Partner.

 

[Deadkaiser]

Yes I've discovered it's drinking habit, it's like an alcoholic on a bender.

Still got my first build in mine as it seems to be working ok, but I can't crank up the power to much it gets a bit dry.

Your right about a learning curve, I think there's a few of us just trying to suss out everything.

I'm not unhappy with the tank, just need to get used to it.

You didn't accidentally have the juice control up a bit just check the deck and screw it down a bit as it hard to tell at a glance that said i've been running mine only at 20-30w hot enough for me and never had a dry hit.

I preordered this because of the unique deck design that appears to make it simpler to build. I'm still pretty new to rebuildables and only owned a clone Orchid V6 so far and hate hate hate the 4 post design which takes me 2 hours each time to coil - and the coils always end up spaced out and bent wildly and I ALWAYS get leaking out of the bottom with that Orchid V6.

I preordered this because the design makes it easier. But now based on reports the juice filling will be super complicated - moreso than the Orchid which is a bottom fill. :/ Oh well, probably the last time I preorder a tank.

Hopefully I'll somehow find better luck with it when I get it than others have experienced.

I don't know i only have built like 3 other dual coils before and this was by far the easiest, I've now re wicked it a few time with no issues (I change the wick for new Juice) never had a flooding issue I have been leaving a fairly large air pocket on the top that probably helps alot but I really dont think this is a hard tank to use I recon the other reviews just go a little unlucky... Hope this image helps this is what i've been doing cutting the wicks pretty much flush with the atty then cutting a large triangle so that the wicking fits easly into the channels and as you an see mine goes right down to the bottom but its seriously thin there also note how open the juice controller is (Think thats close to fully open, it's the distance between the bottom of the chimney deck threading and the juice ring easy to see in this image and it is rather small) Just a thought I have not tryed this my self but if your having wicking issues maybe fully removing the Internal juice ring would help..... worth a try

 

[roxynoodle]

???

I have a ton of top fill tanks, or I top fill them. None of them leak during filling.

I've never had my v1 leak either. However, I can no longer top fill except after rewick because the chimney comes off everytime I unscrew the top nut. I used to be able to do it all the time. Now refills go through the bottom.

 

[Deadkaiser]

FTR I would not recommend anyone to buy this Atty at the moment give it a few months and i recon Cthulhu will find a new manufacture and you will get a far better quality atty, I do really like this atty but for what you pay the build quality should be a lot better and i'm sure Cthulhu will be forced to improve it soon I recon there all ready finding a new manufacture... Sure it will probably function 95% the same but I think if you are to drop $40 on a RTA its nice when the threading is at least decent..... So if you want a decent quality wait a bit maybe cancel that pre-order if you can (just my opinion) otherwise like me and the other to great reviews on this thread you will be disappointed by the build quality.

 

[TheWestPole]

FTR I would not recommend anyone to buy this Atty at the moment give it a few months and i recon Cthulhu will find a new manufacture and you will get a far better quality atty, I do really like this atty but for what you pay the build quality should be a lot better and i'm sure Cthulhu will be forced to improve it soon I recon there all ready finding a new manufacture... Sure it will probably function 95% the same but I think if you are to drop $40 on a RTA its nice when the threading is at least decent..... So if you want a decent quality wait a bit maybe cancel that pre-order if you can (just my opinion) otherwise like me and the other to great reviews on this thread you will be disappointed by the build quality.

Manufacturing quality was a problem early on with the V1 also. Good advise, IMO.

 

[Deadkaiser]

???

I have a ton of top fill tanks, or I top fill them. None of them leak during filling.

I've never had my v1 leak either. However, I can no longer top fill except after rewick because the chimney comes off everytime I unscrew the top nut. I used to be able to do it all the time. Now refills go through the bottom.

maybe remove the Oring on the juice cap could help mine is not super easy to remove by i never have much trouble.

 

[roxynoodle]

It should have been reverse threaded like the top cap of the Eviva-t.

 

[Yorkyboy]

WoW , That was a Most Excellent Video YorkyBoy, Thank You for the time you took to do it.

I was so wishing that you could have given me a MM measurement on the width of the Mugi strip that you cut off to use in the coil. I'm a numbers kind of guy you know. I will make a link to this video to save for reference so I can come back to it to make sure I get all the little points and don't miss any crucial detail, after all the Devil IS in the details you know, and You seem to have covered them all quite thoroughly . Again, Thank You for the video, I WILL be using it for my Cthulhu V2 builds, that is, when I finally get mine, Still waiting though . Happy Trails Partner.

Thank you @52anddone , very kind words.

It's difficult to give a mm measurement because so many factors can affect the wick. The main one being how much of the outer skin is removed which affects the overall thickness of the pad.

What I actually do now with the Muji is not peel it in half, I carefully peel the outer skin off on both sides, using my thumb to keep as much of the cotton on the pad, just removing the very thin outer layer very gently.

If you do this, you can just about cut the pad to the same width as the ID of your coil. The true test really is when you pull it through, like I said in the video, a bit of resistance is good, if there's enough to pull over the mod, it's too much.

Good luck with it

 

[TonyB66]

"rhm",

You are not going to like this but none of the top filling tanks can work properly.

Have to disagree with this statement HolmanGT - the Kayfun 4 will not leak if you top fill with the juice control closed properly. It does work, I've had one (genuine) since they first came out and it's only leaked when I forgot to close the juice control, apart from that it's been fine. No leaks.

 

[TonyB66]

You didn't accidentally have the juice control up a bit just check the deck and screw it down a bit as it hard to tell at a glance that said i've been running mine only at 20-30w hot enough for me and never had a dry hit.

View attachment 491720

Max VG juice plus the fact that I've been running it at 25-35watts. Just not getting enough juice.

When I first built it with my abortive wicking (no wick tails down the juice channels) I used a wicking method called the Scottish Roll that I had just seen on YouTube. It involves getting a very fluffed out cotton pad rolled up and pulled tight through the coil. It holds a lot of juice and I was hitting 40 watts with no problems........until I dried it out...LOL.

I'm still using my second wick and it definitely is working better with slightly thinner juice and I just vaped a tank at 30 watts. I've also notice that you can still vape (tight MTL) with the air slots closed which did a good job of saturating my wicks to allow higher power. Now to try another tank of thick juice.

I'm thinking that the juice control is really an on or off affair and not really useful as a control to stop leaks with thinner juice.

Still learning.

 

[HolmanGT]

Have to disagree with this statement HolmanGT - the Kayfun 4 will not leak if you top fill with the juice control closed properly. It does work, I've had one (genuine) since they first came out and it's only leaked when I forgot to close the juice control, apart from that it's been fine. No leaks.

Tony,

If your Kayfun has juice control that is different. I have never had an Atty with Juice control so I can't speak to that. But units that top fill and only use the closing of the intake airflow will leak because nothing shuts off the other end of the pipe i.e. the drip tip opening into the same chamber.

 

[eddiea]

To avoid leaks from top-filling, an option might be to try screwing the top cap on just enough to close off the fill holes (not fully tightened) then turn the tank upside down and quickly tighten the top cap completely.

 

[TonyB66]

To avoid leaks from top-filling, an option might be to try screwing the top cap on just enough to close off the fill holes (not fully tightened) then turn the tank upside down and quickly tighten the top cap completely.

Agreed. The old Kayfun top cap fill method as you describe will certainly help. Just let the air in the tank rise to the top (tank inverted) before pressurising the tank when you screw the top back on.

 

[tazz]

In my experience, if the wicks are properly placed in the juice channels and you close the juice control there should be no problem with leaking. Heck on most of my attys I leave it opened and fill and usually don't have a problem. The problem arises when you put the top cap back on and screw it down which when you do that the tank builds pressure.

 

[roxynoodle]

I don't even close off the airholes on my Evivas and they don't have juice control. They've never leaked a drop.

 

[Deadkaiser]

Just saw some Cthulhu v2 unboxing on you tube must say the build quality on his looked a lot better and his wick ring had knurling, maybe they already change manufactures - anyone else have knurled wick ring?

 

[xenxenogear]

Just saw some Cthulhu v2 unboxing on you tube must say the build quality on his looked a lot better and his wick ring had knurling, maybe they already change manufactures - anyone else have knurled wick ring?

Well Smog Distro apparently only received 200 of 600 units, and I am one of the people who will get the last set of 200 so most likely if they made any manufacturing revisions already I'll receive the knurled one.

Here's a picture from that video showing the non-smooth ring: