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Buddy McDonald Refrigeration Basics Quiz February 22, 2022, 6:15 am
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Law of Perfect Gas
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Simple Pump Selection Part 2
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Do You Need to Be Recovering Into a Vacuum?
This topic came up because I was testing out the new MR45 digital recovery machine. That machine goes off by itself when it hits a 20″ Hg vacuum. It's a cool feature, but it is good to know when that level of vacuum is overkill and when it's not enough according to EPA requirements. You […]Read more