can't really specify what is the exact problem is it the wicking, the mod or the built ??Did not have this problem witht the original OCC 0.5 that came with it , nor with the pre built coil ....does anyone know the prebuilt coil that came with the tank what gauage kanthal and diameter ?!! I'm totally lost and ready to throw it away
Subtank mini RBA micro coils
- Thread starter Fady Ibrahim Guirguis
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I guess the next step may be to enlarge the juice channels in the base (I have done this).
I feel your frustration I was there for a whole weekend trying to get it right and then I got it and can keep it going every time all the same. When you take a pull on it do you see bubbles coming up from the bottom? if not then it means its not wicking very well
I feel your frustration I was there for a whole weekend trying to get it right and then I got it and can keep it going every time all the same. When you take a pull on it do you see bubbles coming up from the bottom? if not then it means its not wicking very well
Yes I can see bubbles coming up , and I Take couple or priming drags.... I don't want to mess with the juice channels , but how did you enlarge them ?
I used a hacksaw blade myself, other have used a small jeweller's file or dremel with cutting disk.
how tight is the wicking through the coil? you might have too much stuffed in there and it cant wick sufficiently. It shouldn't be hard to pull through, also what kind of wicking are you using? I'm using cotton bacon, its nice and loosely woven.
I'm using japanese Organiac cotton and the wick is sung not too tight not too loose ... I can pull it from either direction with no big effort and without messing the cotton
Yeah, I'm with you - a bit sceptical with Efest and their claims until I see some tests. Thanks for the heads up - I'll be looking around for that.
So the power generated by the cf mod is not too high for the subtank mini..... Please I need an answer to this it's crucial to determine whether or not I need a regulated mod
If you want to be on the cheap for a tool, you can get a small dremel from harbor freight and use its included cutting disc. I have used these for various projects. The motor in it is kinda weak but good enough for cutting small things. May be a bit easier to find than a jeweler file set.
To sum things up ....I emailed kangertech to ask them about the issue , i've been told that asipre cf mod is ok with the tank for both the rba and the occ. I've actually pulled a new OCC and it's working super fine with the fresh batteries no issue at all. So I think i've to refine my wicking techinque or coiling , probably I should start building coils using 26 g around a bigger diameter 2 or 2.5 mm .... and maybe higher VG juices would solve the issue .... thanks a lot for all your replies and input .... VAPE ON 
There is a reason why stock coils and RBA deck comes with spaced coils, which are proven to be able to pack in much more cotton than micro coils, better heat dissipation, more even juice burning and allow thus higher wattage vape, contrary to some misconceptions.
The Subtank RBA deck is not design for micro coils as it requires packing in more cotton at its sides, unlike other RBAs. Preferably you should use spaced 26 gauge. 24 gauge is fine too.
Spaced coils will give more flavour, cooler vape, thicker clouds and less burnt taste, especially for a smaller chamber. You don't have to worry making it perfectly evenly spaced, slight variation is totally fine, as long as it lights up evenly from the centre with no hot spots at its legs.
You can try Rip Tripper's style, which is great. He used a simple blue 2mm screwdriver to manually wrap 26 gauge spaced coils (leaving about a coil diamater gap in between. 2.5mm coils should even work nicely too. You can use screws for more even wrapping. But if 'Rip can do it, so can you.'
Micro coils looks impressive when fired, as it forced its vapours & bham into a focused direction with finer mist.
But it has to trade-off some flavour.
Main caveat with spaced coils is it tends to make popping sound, and shoots some juices at you when you fire, which can be annoying to some people (wives, gfs etc. LOL).
I'm now testing a new build by making a gap in between two micro-coils in series. So far its been working great with no more popping, while the vapour escapes thru the gaps vertically towards the drip tip.
2.5mm 24 Gauge with dual 5 wraps of micro coil in series
The Subtank RBA deck is not design for micro coils as it requires packing in more cotton at its sides, unlike other RBAs. Preferably you should use spaced 26 gauge. 24 gauge is fine too.
Spaced coils will give more flavour, cooler vape, thicker clouds and less burnt taste, especially for a smaller chamber. You don't have to worry making it perfectly evenly spaced, slight variation is totally fine, as long as it lights up evenly from the centre with no hot spots at its legs.
You can try Rip Tripper's style, which is great. He used a simple blue 2mm screwdriver to manually wrap 26 gauge spaced coils (leaving about a coil diamater gap in between. 2.5mm coils should even work nicely too. You can use screws for more even wrapping. But if 'Rip can do it, so can you.'
Micro coils looks impressive when fired, as it forced its vapours & bham into a focused direction with finer mist.
But it has to trade-off some flavour.
Main caveat with spaced coils is it tends to make popping sound, and shoots some juices at you when you fire, which can be annoying to some people (wives, gfs etc. LOL).
I'm now testing a new build by making a gap in between two micro-coils in series. So far its been working great with no more popping, while the vapour escapes thru the gaps vertically towards the drip tip.
2.5mm 24 Gauge with dual 5 wraps of micro coil in series
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