Dumb AC question

I want to evacuate my AC unit on the 2000 S10 I have. I want to save the freon in a recovery cylinder. I have a vacuum pump with the inlet port mounted in an obvious fashion.

I don't see an outlet port, other than what appears to be a blow-by type port which doesn't have any fittings which could be hooked up to a recovery tank.

How do you use the vacuum pump to allow for freon recovery?

I want to evacuate my AC unit on the 2000 S10 I have. I want to save the freon in a recovery cylinder. I have a vacuum pump with the inlet port mounted in an obvious fashion.

I don't see an outlet port, other than what appears to be a blow-by type port which doesn't have any fittings which could be hooked up to a recovery tank.

How do you use the vacuum pump to allow for freon recovery?

Go to corvetteforums.com , into the C4 tech/performance section. There's a member in there daily who's an A/C guru. Can't remember his username, but search the forum for A/C topics, and you'll see who it is quick-like...