I then mounted the Spare Air to my BCD using the supplied holster and dove down to the deep end of the pool. Now I'm not sure if it's because the device hadn't been used in a long time or it's a failing with the device itself but my first dive using the Spare Air was anything but pleasant. At 14' deep I got about 20 breaths of air but each breath was difficult and uncomfortable. I found it more difficult to breathe off of than a rental octopus! It wasn't pleasant but it worked.
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