Well he is adamant he can do a full regas in that time. He said a number of times that he has done this for 20 years and can do it blindfolded.

Hmmmm not so sure now
 
Don't get me wrong over the years I've done a few on the side and you can get away with a vacuum time of 10 mins but it's best to do a longer period to remove all moisture etc and you then guarantee a excellent vacuum to pull the new gas and lubricant in.
All I was saying is if your paying for it make sure it's done properly.


Sent from my iPhone
 
It sounds like he switches off the vacuum pump as soon as it reaches a full vacuum; to do the job properly the pump should be kept running for at least 15-20mins after it's reached an indicated full vacuum for the reasons given by Kev.

I've re-gassed several hundred cars and it takes me an average of 1hr to do the job!
 
so do you guys think i would be better going to kwik fit who will take over the hour to do it and hopefully fully vac out the remaining moisture??

thanks