Using Cyb's maxION Tek with 50g of ACRB. My question revolves around a layer of what appears to be bark powder floating at the top of vessel. It has been there since the beginning, and is still there five hours into the heating of the acidified solution. Is this OK? Is it something that should be filtered out? Will it go away, or dissolve into the process at any point? Any thoughts or suggestion on this would be greatly appreciated. Hopefully the picture explains things better than my words probably have. Thank you.