Yeah, being see through they can be hard to spot…
This is the third part of the triumvirate @BigM_2 mentioned that is required to wreck your day.
Source of ignition literally 12” away and 6” below the top of your column. Whole new meaning to “light up!”
The ovens are also flat out stupid in that location.
Go read: Have u guys seen a rise in lab explosions? for starters.
I suggest you distance yourself from this machine if you do not have the authority to remediate those issues. It was set up by someone who has not grasped that hash laden solvent WILL flow upwards in a hose, just like solvent without hash in it does.
This job is not worth your life.