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People have been using all kinds of tanks and tank bands for decades, have never heard of corrosion problems. The tanks are galvanized or painted and the bands are galvanized or stainless. I cannot speak for the 'tube man' but the likeliest reason to put the rubber under the bands is to protect the paint job (obviously not for cave divers :)) Also I have noticed that tanks expand noticeably between the empty and full states. Theoretically it would be nice to have a cushy spacer in there to allow the bands to be a little looser when empty, but obviously this is not necessary or even desireable for most. So- no real issue that I can see...Paul Smith On Tue, 12 Sep 1995, Todd Leonard wrote: > A posting in another forum got me wondering about the effects > of metal components in contact with eachother in a diving rig. > The poster mentioned he uses a strip of inner-tube around the > circumference of his tanks, in-between the tank surface and the > hose-clamp he uses to attach D-rings. I've never noticed a > configuration like this (though I wasn't really looking), so > I'm curious about how big an issue contact between the hose > clamp and tank (or metal components in general) really is. Are > there problems caused by electric potential between dissimilar > metals? Abrasion problems? Is it dependant on the specific > metals involved? Or on salt vs. fresh water? How do others > deal with the issues (if any)? > > Thanks... > > p.s. I switched email addresses (used to be todd@me*.co*), > on the off chance that anybody actually cares. :-) > > _____________________________________________________________________________ > --- Todd Leonard --- toddl@in*.co* --- http://www.infinet.com/~toddl/ --- > -- > Send mail for the `techdiver' mailing list to `techdiver@terra.net'. > Send subscription/archive requests to `techdiver-request@terra.net'. >
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