Peter, I have been doing some experimenting with oxalic acid and different ways to apply it. What I found that works well for me was drilling a small hole in my smoker so I can attach my Weller Pyropen (WPA2). Now the oxalic acid is sublimed in the smoker and I can just puff it when and where I want to (within reason).
According to Mr. Fischer, the temperature that OA is sublimed at is pretty important, is their anything in your system to account for that??
Charles
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