Caustic kitty litter: Bringing your rebreather to Cozumel redux

I decided to bring my rebreather down to Cozumel again since I was going to be there a month and wanted to get some deeper dives in. You can see my August trip report for more thorough information. As per usual I brought my rebreather on the plane as carry-on. I dive a rEvo II Mini which is about as travel friendly as any 45lb rebreather can be. After removing the tanks and stand I wrapped the entire unit in a grill cover to make unit look like a backpack…