I've used a submersible pump in ice water too, but found that the pump would heat the water it was in. It was a tad counter-productive. I'm trying to figure out a better method. I am wasting too much water during the wort-chill. Any suggestions? Thanks.
Dry Creek Brewing
Primary: EdWort's Haus Pale Ale, EdWort's Hefeweizen, White House Honey Ale
Bottle conditioning: Synchronicity Saison (NB)l
Enjoying: Jamil's Hefeweizen, last of the British Pub Brown