ttystikk
Well-Known Member
Okay. This might be (and might not be) a piece of the puzzle.Burners. They are cleaned regularly and they burn blue flame, proper high altitude versions, I have carbon monoxide detectors.
The dude who had ethylene poisoning problems had a gas leak that built up partially burned hydrocarbons including ethylene in his grow room. He found the leak, fixed it and the problem went away. I should ask him if he ever vented his room.
When your yields were down during those times you weren't venting, did you notice yellowing leaves or curling leaves, especially new growth?