I do a lot of vacuum pumping for stabilizing. You can use a refrigerator compressor for that matter...they pull vacuum but are kinda hinky in some areas. Due to cost constraints at the time, I went with the HF 3cfm...$85 with the coupon. Gast is out of my reach unless you hit a pawn shop...un-employed A/C guys ditch 'em in a second. The next one I'm already looking at, Robinair Cooltech is American made, re-buildable, pulls 6 cfm is and rock solid. Amazon has them but Craiglist is a good supplier as well.
Last edited: