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Search is now my friend!
One last thing that I forgot to mention.
Take Anything you read here on the ECF advisewise with a grain of salt.
What works for one person may or not work for another. And what one person considers safe and reasonable, someone else might not.
I think this thread below illustrates this quite well.
http://www.e-cigarette-forum.com/forum/new-members-forum/153415-possible-best-atty-cleaner.html