Backfilling headspace with Argon

[Keiyh]

I decided this would be the best answer for my headspace. See picture. How much and how often do you need to add?? This is only for an additional 4 weeks until bottling

 

[joeswine]

I've used nitrogen all my wine making days, just purged nitrogen out of the tank through a pressure hose.
No problems ever.

 

[Rice_Guy]

a “how much” from the vinters club/ I do not use argon yet:
1) inject slowly near the level where the wine is, ,,, your goal is to minimize mixing, ,,, seems it would be useful to put a basic stainless ball in a tube flow meter in line for a number.
2) when the head space is as full as possible you will feel a temperature change at the mouth of the carboy, ,,, expanding gas is a refrigerant
3) plug the carboy with a solid stopper,

I decided this would be the best answer for my headspace. See picture. How much and how often do you need to add?? This is only for an additional 4 weeks until bottling