The aspen are gold, the wood is ready and my Garn is ready for it's first full winter of work. I left it unfilled during the summer and now I have cleaned the tank and filled it up for firing. The biocide that came with the Garn (CLT 551) had no instructions that I can find. I have no idea on how much of this chemical to add. It is pretty nasty stuff from what I can tell and I do not wish to take any unnecessary chances with my system. Does anybody have a clue about this material?