Like many, finding the right 510 atty cleaning method that really works best for you is like the holy grail of good vaping. I can't honestly say that I've tried each and every method everyone has posted here on ECF, but I have tried many. Soaking in water, Vodka, 91% isopropyl alcohol, Crest Pro Health mouthwash and hydrogen peroxide. I've used these in combination with multiple cycles in my ultrasonic cleaner and the very effective dry-burn process.
The bottom line with each and every method I've tried is to find the one (or combination of methods) that leaves my wick as white as possible and when clean provides the most volume of air when I blow through it, just like a brand new atty - and this is what I've found to be the very best:
1. Blow any remaining e-juice out of the atty. I always blow only from the open cart end through to the batt connector end into a tissue.
2. I drop my atty into about 1-1/2" of hot tap water in a plastic drinking cup.
3. Drop in one "3 Minute" Polident anti-bacterial denture cleaner tablet and agitate (by swirling) the solution for about a minute. After a while I'll again agitate the mix for a few seconds and do this every time I think about it, perhaps half a dozen times over the next couple hours.
4. I then let it sit for a day, agitating whenever I think about doing it.
5. I remove the atty from the solution and rinse it out with hot tap water by clamping it in a wooden clothespin and sitting that clothespin flat across the top of a shot glass with the cart end of the atty up. I run the hot tap water into the end of the atty just strong enough so it doesn't splash all over the kitchen for about 5 minutes.
6. Then remove the atty, blow it out and let it dry overnight.
7. The last thing I do is perform the dry-burn procedure with intermittent bursts of the button on my passthru for several minutes with many periods of cool down. I know when it's done when it glows brightly almost instantly from a cold start.
Both the Polident tablet and the dry-burn procedure were found and described by other members of ECF so I take no credit for anything I've explained here except for my exact procedure.
After so many months, I have found that cleaning my 510 attys this way gives me an almost new "white" wick, a nearly perfectly clean coil and the cleanest air passages. Other methods and materials (chemicals) do well, but this is what I found to be the best so far and it works for me.
The bottom line with each and every method I've tried is to find the one (or combination of methods) that leaves my wick as white as possible and when clean provides the most volume of air when I blow through it, just like a brand new atty - and this is what I've found to be the very best:
1. Blow any remaining e-juice out of the atty. I always blow only from the open cart end through to the batt connector end into a tissue.
2. I drop my atty into about 1-1/2" of hot tap water in a plastic drinking cup.
3. Drop in one "3 Minute" Polident anti-bacterial denture cleaner tablet and agitate (by swirling) the solution for about a minute. After a while I'll again agitate the mix for a few seconds and do this every time I think about it, perhaps half a dozen times over the next couple hours.
4. I then let it sit for a day, agitating whenever I think about doing it.
5. I remove the atty from the solution and rinse it out with hot tap water by clamping it in a wooden clothespin and sitting that clothespin flat across the top of a shot glass with the cart end of the atty up. I run the hot tap water into the end of the atty just strong enough so it doesn't splash all over the kitchen for about 5 minutes.
6. Then remove the atty, blow it out and let it dry overnight.
7. The last thing I do is perform the dry-burn procedure with intermittent bursts of the button on my passthru for several minutes with many periods of cool down. I know when it's done when it glows brightly almost instantly from a cold start.
Both the Polident tablet and the dry-burn procedure were found and described by other members of ECF so I take no credit for anything I've explained here except for my exact procedure.
After so many months, I have found that cleaning my 510 attys this way gives me an almost new "white" wick, a nearly perfectly clean coil and the cleanest air passages. Other methods and materials (chemicals) do well, but this is what I found to be the best so far and it works for me.
They are all vaping like I had just opened them this week! 
