At least once a year you need to service one of the most important parts of your dive gear – your regulator. Even though you rinse it in fresh water after every dive, there will still be a build-up of dirt, salt and oxidation that needs to be cleaned out. Quo Vadis is currently servicing a number of regulators, and so I got a chance to service mine and learn how it’s done too.
It really is a clever invention. So simple, but so brilliant in how it’s able to convert the 200 bar pressure in the tank to 10 bar that comes out through your second stage at breathable ambient pressure.
I’m not going to get into the details, but I do recommend reading a bit about this invention that really made recreational diving possible. Wikipedia has a good article on it here.