OK, now I see what you mean by "zero vis". John R. Rose wrote: > > Claudia, > > Scott is not the person to ask, you need to ask the person riding behind > Scott to get the correct answer :-) > > -John > > On Mon, 8 May 2000, Claudia Milz wrote: > > > Scott, et al., > > > > What's the minimum viz for you to proceed into a cave, scootering? > > > > Do you 'use' the line at all / as reference - what max distance do > > you have to the line? > > > > What would you do if you had gone in scootering and although you have > > plenty of scooters, you have no light / silt out. Do you calculate > > gas for this too, since you need more to swim out? > > > > Is there a SAFE way to not only have on / off switches, but maybe 2 > > velocities for lower viz or other purposes? It's a drag to swim those > > guys through a low viz region. > > > > Thanks, > > Claudia > > > >
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