Originally Posted by joejeff
So how did you know when it was safe?
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When I kept it in boiling water and kept changing the water every 30mins until it remained clear and didn't discolour at all after hours of boiling. This process can take many hours, even days on large pieces.
Then I left it in the sun for a week till it was bone dry. Then put it in a tub of water dosed with prime until it sank and stayed down. Changed the tub water daily.
If it gets past all that, I consider it inert enough to consider using.
Some driftwood I'd never use even if you did all this. If it's a softwood, pine, etc its not suitable from the outset. That's the risk. Unless you can identify the driftwood you've collected, you don't know what you're introducing