I am not exactly sure I even need it. I cannot find any info that says you should definately use keg lube or exactly how much and where it should be applied. However, I figure better safe than sorry.
Unfortunately my LHBS does not even seem to know what it is. Least the kid at the counter did not. So, I grabbed some "stuff" at Lowes. It seemed to be right, but I thought I would check with you experienced keggers.
It is called plumber's silicone grease. It says it is waterproof, heatproof, nontoxic, nonflammable, nonstaining and contains no petroleum. It s intended for lubricating faucet stems o-rings, valves, ballcocks, etc. For use with rubber and synthetic o-rings gaskets and seals.
Okay, now what do I do with it...