Well, that developed rather quickly!
the antifreeze does work, that is already clear.
I have checked the three bottles with liquid, and there are clear signs of rust in the pure water sample, after just one!! day.
Nothing whatsoever in the two other bottles with neat and 50/50 solution.
(I have turned the bottle with clear water for a better view of the nails)
Now the question remains, why does the fire ring get consumed by rust, even if the liquid seems to protect?. It must then be associated with the combustion, maybe suggesting that the rust is a result of the fault somehow and not the reason for it. In other words it might be the symptom rather than the cause?
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