ProjectBuild a Transparent In-Line Aerator: ProjectsBuild an aeration system that you can see right through.Already a member? Log InWritten by Thom Cannellphoto placeholderBuild an aeration system that you can see right through.Already a member? Log InYou'll Also Like Project MEMBERS ONLY “Smart” Fermentation: A chamber with a CO2 harvesting system This project may not be for everyone . . . but man it’s a cool build! One reader built his own “smart” fermentation chamber from scratch with its own CO2 harvesting system. Learn the details of the design and how to craft one yourself. Project MEMBERS ONLY Whirlpool Port Install Whirlpool ports (and other miscellaneous ports) have become more common these days. One clean way to add a weldless port to your kettle utilizes a knockout punch.