How to Remove Sharpie from Developing Trays?

Mark_S said:

+1 on acetone.

Humorous anecdote: I was in a meeting at work, in a brand new, fancy conference room, and I wrote some notes on the white board and then noticed that I was using a sharpie rather than a dry erase marker. I asked my admin if she had something that I could clean the board with - and she said not to worry, that she would take care of it.

She wrote a work order for facilities to erase the board.

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