I have been playing around with bits and peices to get my wort down lower than the tap water,so just say I have been running my chiller until it is tap water temp ,about 30, so then I have connected 2 power heads (aquarium)in a esky with 3 metre copper coil as a second chiller,one power head is 500lts an hour connected to chiller and the other is just to push the water around the esky,I will freeze some ice cream containers at the moment seems to be working good and saving on water ass well,I didnt get a cold break last brew so I will see how it goes next one.
Is anyone doing anything similar to this.
cheers sav.