i have been on my 510 atty for 1 month and 13 days. it has started to lose taste, i have been putting more liquid in it to get more flavor, which in turn makes it leak a lot. so then i have to blow it out, try it again, and repeat. it still produces the same amount of smoke, just not the same color, more grey than white. i have been having to fill it till it starts to gurgle. i have boiled it a couple of times when i noticed that it was getting hard to "draw" on. i dont abuse it.... i put a new one on and it works the way it should. is it time to lay my old atty to rest? also i do not have a volt meter.