If your concerned about time between doing the work and having it properly charged you can just pressurize the system using a top-up bottle from where ever local, then it will be vacuumed out later. That will prevent moisture from.entering the system.
You could also pressurize the system with propane. Some people actually use propane as a refrigerant, it's not as efficient, but it works. I've actually used it to find the leak in my AC system... R134 is also flammable so don't be concerned about turning your 4Runner into a pipe bomb
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You could also pressurize the system with propane. Some people actually use propane as a refrigerant, it's not as efficient, but it works. I've actually used it to find the leak in my AC system... R134 is also flammable so don't be concerned about turning your 4Runner into a pipe bomb
Sent from my Pixel 2 using Tapatalk