In this episode of the Advanced Refrigeration Podcast hosts Brett Wetzel and Kevin Compass share experiences tackling a Cascade CO2 startup. They dive into the pros and cons of using Cascade CO2 systems, the numerous check valve issues encountered, and the mishaps that come with working under freezing conditions. The conversation takes a humorous turn with personal anecdotes about electric shock, incorrect piping, and even meeting a Scotsman with a charming accent. Tune in for an informative yet entertaining discussion on advanced refrigeration systems.00:00 Introduction and Greetings00:27 CO2 Cascade System Challenges02:00 Check Valve Issues and Solutions03:40 Startup Troubles and Cold Weather15:24 Communication and Wiring Problems21:29 Case Assembly and Initial Setup22:03 Backwards Pipe Case Issues23:03 Check Valves and EPRs Discussion24:46 Startup Challenges and Solutions27:24 CO2 and Refrigeration Systems31:41 Final Thoughts and Reflections