Hiring someone probably is the smartest thing to do. The entire system is about to be opened, because I have to move it all out of the way for a couple of days.
So dryer should be reached any time opening the system or anytime converting between the different types of freon. I'll get a dryer soon.
Main thing is you need pull vac on the system before charging..and see if it holds.... Ac vac pump is a must. You cant just hook a can of **** to the low and have it work.
Gauges, ac vac pump and check for leaks.
I've done all my own ac work.
