Diver Daves' IDA-71 Teardown

The IDA-71 is the most common of Russian rebreather systems. Actually, the IDA-71 is a complete system, designed not only for shallow water oxygen use, but also for mid-depth Nitrox use (using a belt-worn Nitrox system), as well as for high altitude parachuting operations and for use as a supplemental oxygen system for high-altitude helicopter crew use! Thus the system is really the "Universal" IDA-71 system.

Since the system description is fairly detailed, I've broken it down into areas:

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OR, Even Better: See how I converted it to CCR mode!