I've often wondered if there was a fluid you could put in an A/W that would cool quicker than water. As an example, if you could fill it with isopropyl, loop the in and out hoses and then cool it back down between rounds. I probably thought of isopropyl because of how cold it is when it's evaporating off the hand, (which obviously wouldn't be happening). Would be a fun experiment.Thanks for the input.
I'm going to give the A/W a try without an on board resevoir or pump.
I'll cool it down with a cool down unit between rounds.
If I don't like what's happening, I'll add the reservoir and pump.