In this episode I talk about the moment I understand a key part of CO2 refrigeration. I also discuss aluminum evaporator coils and the slime they seem to produce.  HVAC Shop Talk is a YouTube channel & podcast that celebrates the guys and girls in the skilled Trades - especially HVAC. #hvac #hvactraining #hvactech #hvactechnician #hvacpodcast   Join the HST Discord server - https://discord.gg/ttbg4rxy3S Sign up for email notifications - http://eepurl.com/c2eywf   Sponsors Jobber - http://www.getjobber.com/shoptalk Yellow Jacket - https://yellowjacket.com/ NAVAC - https://navacglobal.com/ Company Cam - https://companycam.com/ Refrigeration Technologies - https://www.refrigtech.com/ EWC Controls - https://ewccontrols.com/ TruTech Tools (Use my "SHOPTALK" promo code) https://www.trutechtools.com/   Contact me - hvacshoptalk@gmail.com