Pelagian Diver Controlled CCR
Posted By Mark Ellyatt on 30 November 2006
To the left an idyllic beach scene on Koh Tao. To the right, Andy and I botch a camera pose while looking at something possibly interesting!
The Pelagian has an unusual breathing bag configuration in that they curve around you starting from shoulder blades and ending near the hip. More interesting is that they are constructed of motor cycle inner tube! Rebreather Lab wouldn't be the first technical equipment manufacturer to use inner tubes but at least they use brand new ones. Obvious advantages of using inner tube is that punctures are easily fixed and that as shown on mopeds worldwide they will likely last many years. I didn't notice any perceptible rubber smell, only the clinical smell of the sterilising fluid used to clean them. The slim line breathing bags are completely out of the way and don't seem to be affected at all by hydrostatic loadings (if we are being posh), or body position if we isn't. An overpressure valve is placed on the breathing bags of course but as it would only trigger just before the bags burst it makes more sense to exhale through the nose when necessary to lose loop volume. I spent two days learning the unit in the sea, the diving conditions were typically low season and the green hue in the water didn't make for brilliant underwater photos or enhance the chances of seeing anything other than the usual macro-fodder.
I suppose if I wanted a rebreather for personal use the Pelagian would be a good choice. I've certainly seen enough rebreathers over the years I didn't like - some sporting CE marking, but all looking like they were blown together with parts from B&Q, Tandy's and Osma . I did like the size and transportability of the unit. The predictability of its gas supply method is another plus point and of course the impressive build quality. My only concern was the lack of audible or tactile alarm in the event of high or low inspired oxygen. You decide. Contact Andy at www.Rebreatherlab.com for more details and training options.
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