I'm soon moving up to full boils and understand the need to get from boiling to pitching temps in a relatively short time. I've searched to no avail, so here's the question. Could you make an "effective" chiller from say a 5 gallon round cooler with your 25 foot of coiled copper in it, inlet at the top, exit through the bottom (former spigot location), filled with ice water, and a ball valve on the outside to control flow rate? A gravity step down system started by siphon. It seems that everything I read here says immersion chiller or counterflow. But to have a dedicated chiller unit, there's more protection for the coil upon moving it. I see the difference only being that the wort is traveling through the copper vs the IC way. Open my eyes to what I may be missing here. Your experiences and thoughts would be appreciated.