1. Inflatable life jackets are zero maintenance - Let's face it, pretty much nothing on a boat is zero maintenance. Before you head out for the day, simply check to ensure the CO2 cylinder is screwed firmly in and you can see the green indicator tab. Once a year, take it out and blow it up with your mouth, wait overnight, inspect for wear and check for leaks. Repacking is a task made simple - a few folds and a tuck - as instructions are found printed inside the cover flap. Most life jackets that automatically inflate when you hit the water also have small dissolvable components that periodically need replacement, but it's a simple process. A rearming "kit" comes with everything you need.