Headspace eliminator question

[Ajmassa]

I dont think this is an alternative to topping up for bulk age. Even if you run the pump and re-pull a vacuum every few days. HE is great tool. But not long term. I use it specifically to hold me over until either topped up or in proper sized vessel. It buys time.
Enough headspace- even with the HE will leave you at risk.

I’m the OP? Look at that!