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SCR Deco



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Old 27th April 2005, 09:46   #1 (permalink)
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SCR Deco

This one is for all the SCR divers (although CCR divers feel free to chip in).

What are you doing for deco on your Rebreather? A guy I dive with has the Air Z O2 thingy with integrated O2 sensing. Another guy has a VR3. I use tables.

My problem is, they are on dolphins, whereas I am on my EDO (RB80 copy). As such I have what is in effect a 'reverse scammahorn slide'. On descent, my FiO2 is the same as the FO2 in the supply gas. Over 15 mins or so, the FiO2 slowly drops until it stabilise.

My problem is planning deco with this. I can plan the whole dive, including deco, with the worst case FiO2, or I have been using v-planner which can account for the FO2 drop, but the program doesn't start stopping deep enough for my liking.

What is everyong else using for deco, and, if you take backup tables, what did you use to cut them.
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From birth, man carries the weight of gravity on his shoulders. He is bolted to earth. But man has only to sink beneath the surface and he is free. - Jacques Cousteau
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