Where did you find the 30% vinegar. Been looking for 20-30% vinegar and haven't found any locally (Middle Tennessee).

I had been looking to add cheaters to one or all of my welding helmets but heard about the CSV and ordered one. Long story short...all my OTHER helmets are for helpers, visitors, onlookers...the CSV is mine! Great improvement over the Harbor Freight, Northern Tool auto-darkeners AND the Pipeliner wi...