Double posted snipe? Anyway, it works on principles that alcohol evaporates easier compared to nwater and in the process dissipates the heat absorb in the thermal transfer rather quicker compared to water. Same thing would occur if you mixed water with ester or rubbing alcohol

if you're prepared to face with alcohol's eroding abillity on tubes then go ahead

Sorry to misinform anyone by thinking that alochol is acidic or alkalic but alcohol remains a solvent which one has to remember. Which is why I said it will erode tygons over time. Heck if we normal water which has oxidised also can cause erosion in tygons what more alcohol

No it isn't. Tygon's do and will deteriorate and you don't want to see it doing so. It's pretty ugly.

And a waste of good vodka if you asked me