I have been told personally by a fellow that did refrigeration repairs for years that he added METHYL ALCOHOL (METHANOL) to systems that had small amounts of water in them. He said he learned this from an older fellow that did this. And he claims it worked. He did this on R-12 and R-502 systems, so he said.
Is this advisable?. With the blends in extensive use now, could there be a chemical reaction of the refrigerant or the oil with METHANOL? A person's personal safety could be jepordized. Sounds risky to me, in more than one way.
A good vacuum pump with a digital vacuum gauge is the safe and correct method; I know that for sure.
He spiked my curiosity, so I decided to ask all of you about this.
Would appreciate any info and/or personal knowledge on this.