Just curious if anyone else has done this. To be honest, this piece of equipment originated by my misunderstanding of the immersion chiller. I run the water hose in the barrel and run the hot wort through the copper. It's extremely efficient. During the winter, i just fill the barrel w/ water and keep it cold by shoveling snow into it. When cleaning my keggles prior to brewing, I always hook them up to this and runoff all the cleaning fluid through the tubing. Never had an issue w/ infection and I've been using this for years now. It works great, but curious if anyone else does this. I'll be upgrading to a plate chiller soon, but only because it takes up a lot less space.