[BlindedByScience]

Originally Posted by PartagasIV

I've always dumped a capful of this in each tank when refilling with distilled:

http://www.amazon.com/Holmes-S1708-B...3999099&sr=1-1

Bob (I think) recommends replacing the wicks every 3-6 mos or so, no?

I would NOT use that product unless it's rated "food safe". Its chemistry will impinge itself into your sticks over time. That's why I use what I did; it outgases relatively fast, and is safe for human consumption. Relatively speaking....