Originally Posted by kickflip_mj
Copper or stainless ?
I made one myself with copper and a garden hose. I'm very satisfied with it. Copper is naturally anti-bacterial, which is a plus.
On brew days, I run boiling hot wort through it for a minute or two to sterilize the inside, then I turn on the water and chill the wort as it runs into carboys. After use, I flush it with water forwards and backwards and then store it away.