Originally Posted by ThatGeekGuy
Or just buy a $30 immersion pump with garden hose fittings and drop it in a cooler of ice water. Works much better than tap water....
I've used a 2nd chiller in a bucket of ice to pre-chill my tap water prior to running it through my immersion chiller and it reduced my wort temperature drop time by maybe 25%.
What you're proposing, unless I misunderstand, is to continuously pump ice water through the immersion chiller? Would you be re-circulating or continuously adding ice and tap water to the cooler. Either way, its seems like you would go through a LOT of ice.