Don’t Convert to R134a

Dale Davies said

If I remember correctly, carbon tetrachloride was used for fire extinguishers decades ago. My neighbor bought one at an antique shop about 5 years ago. A sealed glass ball mostly full on liquid. The idea was to toss it at the base of the fire to break the glass and then get out real fast as the gas given off is highly toxic.

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I worked for a mom and pop machine shop while I was still in school and a few years after. Old guy that owned it opened it up in 1957 when ha came back from the Navy. He had a 55 gallon drum about half full of it. Used it for carburetor and small parts cleaner. Best cleaner I've ever seen to this day. He said it never went bad. When it would seem to "get weak", we'd pour it into another container, clean the drum out and strain it going back into the drum and it was as strong as new. IT was some badass stuff.