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As many know I'm fairly new to brazing refrigerant line and only do it as a hobby. I'm curious how many guys use a flow gauge with their nitrogen?
I just bought a Yellowjacket 69086 digital vacuum gauge so the next tool on the list is a flow gauge but I'm not sure if its really necessary. On my past project I simply set my flow by feel and luckily had all clean joints internally.
Also do you prefer nitrogen or another gas? I seem to recall some guys preferring argon over nitrogen
Look forward to all responses.