134a isnt that pricey, also pull from the liquid that way you get liquid volume not just vapor pressure. I also used to charge small refrigeration units through the liquid side before powering them up, then finish by vapor. If you are having problems with the system your refrigerant may be contaminated. Any oil pulled would be added back if you reused the refrigerant. hope this helps
We used dry ice in our Factory- try putting a hairdryer to the accumulator that will help.. Dry ice made it pull a vacuum on the gages
Even with dry eyes you're not gonna get it all hence needed a machine
134a isnt that pricey, also pull from the liquid that way you get liquid volume not just vapor pressure. I also used to charge small refrigeration units through the liquid side before powering them up, then finish by vapor. If you are having problems with the system your refrigerant may be contaminated. Any oil pulled would be added back if you reused the refrigerant. hope this helps
Just buy another cylinder and repeat.
Did you try doing it a second time to see if pulls the other half out? Maybe the tank just ran out of vacuum?
Any reason why you didn't recover liquid refrigerant from the high side?
Dry ice can be bought in quite a few palaces, it can be a bit of money.