"Bob La Londe" fired this volley in news:lfq845$4aj$ snipped-for-privacy@dont-email.me:
A really well-maintained fridge pump with fresh oil will get down _around_ where you need to be for vapor deposition processes, but not easily, and usually not quite.
You need below 2u Hg to be effective, and most Robinaires won't get below ten once they're a couple of years old. I mean, my Robinair thermistor gauge won't read below 50!
LLoyd