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Yes it is. I assume you missed this on your basic open water training.
That depends on the connector. The "drysuit" size connectors aren't too hard. The larger "SCUBAPro Air-2" size connectors require quite a bit more force and are extremely difficult to reattach with the air on.
75lbs sounds absolutely enourmous as a lift capacity even for a twinset rig. Generally 60lbs will take twin 12s and 2 stages if not more. I cant imagine anyone needing over 35-40 for a single setup at all.
I admit I haven't tried this in years. I dive with a Tusa Duo-Air octo/inflator configuration for more than 5 years now and I find it impossible to attach the hose with the pressure (3000 psi) on. Thanks for the update!
Your power inflator should only have about 140 psi on it regardless of tank pressure. If you have 3000 on it, you have more of a problem than just getting it connected.
Webmonkey:Even if she's 20 pounds overweighted, it shouldn't be an issue if you have a BC with a reasonable amount of lift.
If she has a BC made for her size, particularly a woman's BC, 20 lbs overweighted could be impossible to overcome using lift alone...
Webmonkey, I thought you were saying that being 20 lbs overweighted should be no issue for her, the victim. I didn't realize you were referring to the rescuer being able to deal with the victim's overweighting. Agreed that a reasonable amount of extra lift should be available in case one needs to rescue someone. That puts most women's BC's out of the picture, then, it would seem...