I've only ever welded with Flux Core (0.30) on my Hobart 140. I have now purchased a used 80CF Argon bottle and am ready to convert to MIG. I have two questions, though:
1. Is the bottle okay for C25? I was reading about valve tubes that are found on Argon/CO2 mixed bottles.
2. The bottle is exactly half-full with straight Argon (1100PSI). Can I have them fill it to about 1600PSI with straight CO2 to achieve a 75/25 mix?
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