Silent Running --
Yes, I did the whole trip on open circuit. They didn't have pure O2 on board (just a membrane system for nitrox) and sodasorb wasn't available. Apparently they are considering becoming "rebreather-friendly" but they're not there yet. Besides, everyone else was open circuit and the diving was recreational, no deco so a lot of the benefit would have been lost.
As for the manta squadron, I don't remember the site offhand. I'll have to check my logbook.
Doug
Yes, I did the whole trip on open circuit. They didn't have pure O2 on board (just a membrane system for nitrox) and sodasorb wasn't available. Apparently they are considering becoming "rebreather-friendly" but they're not there yet. Besides, everyone else was open circuit and the diving was recreational, no deco so a lot of the benefit would have been lost.
As for the manta squadron, I don't remember the site offhand. I'll have to check my logbook.
Doug