Divers who own their own regulator buoyancy compensator will want to take this two-evening course. Operating principles are covered, and then you will have a hands-on chance to see how the equipment works from inside out. More important, you will learn how to take care of your own gear including how to do minor maintenance and repairs and when to count on a professional for additional service. 

This $70 course is all classroom training and includes certification when complete.