hello all, i have seen some people post about this seemingly randomly around the site, but i was wondering if i could get some opinions all on the same post. i have a couple of 510 attys that feel like they need to be cleaned. they kind of feel gunky when i draw on them. i have heard of some different methods including water, alcohol, vodka. i was wondering if some of you could tell me the best success you have had and hopefully a method that would keep it out of commision for the shortest period of time. also, on a side note, i just had a 510 atty go from completely functional to completely dead. i have had them fry out over time, but never just all of a sudden do nothing. any ideas of how this happened and how to prevent it from happeneing again?