SDI Blog

Deep diving requires additional training, equipment, and preparation, so this is an activity that should not be taken lightly.

After another successful TDI and Poseidon event (first one was…

To get the full benefit of diving with Nitrox, you’ll need…

If you own tanks and intend to use them for Nitrox diving (and you should!) there are a couple of things you need to do before filling them with your personal mix. It is impossible for a dive operator to determine, simply by looking at cylinder markings that indicate the cylinder was O2 cleaned within the past year, that a cylinder and valve have not been exposed to air or gas mixtures that would invalidate its O2 service rating.