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> I dive in Lake Superior; water temps are just above freezing to about 50 F. > I, like Dr. Lawrie, could never reach a manifold isolator valve because of a > drysuit and thick underwear. A valve block in front of the diver would help, > if one exists. Dunno if this is super obvious, but I have the iso valve on my manifold rotated forward about 45 degrees. Makes it MUCH easier to reach. (and it does not bump into my head, like you might expect/fear). Have not done any dry suit diving so I cannot comment on the arm restrictions, but I could not reach my valves, I would make it somehow so I could (perhaps simpler said than done). As for upside-down mounting, I have worn a 30 cu. ft. pony upside down along-side a single-95. The valve was very easy to reach, but gee, you usually (on a dive boat)set your tanks down from your back, so, I did not want to be resting on my first stages... Of course Dive-Rite (and presumably others) sell the valve cages/guards that you could attach.... Mike -- Mike Zimmerman [\] I'd rather be diving [\] zimmmt@au*.al*.co* Alcatel Network Sytems, Raleigh, NC Minds are like parachutes.... My opinions, not Alcatel's they only function when open.
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