Hey all, I have a question and I am hoping someone will be able to help me out.

I have notice recently that our auto purger has went from 6-10 purges every 2 hours to 25-35 purges. My question is how does a person go about checking for a leak when the system is in a vacuum? I have been going thru things in my head and about all I can come up with is smoke but I am not sure if it willbe enough to be noticed at 3 hg. Any help would be great.