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On Tue, 12 Sep 1995, Paul W. Smith wrote: > 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 :)) Um, galvanic corrosion in scuba tanks is a real problem. I've seen more than one valve galvanically attach itself to an AL80. At least one manufacturer recommends that the valve be removed and lubed every six months with (Dow 777? - not O2 safe, anyway) and reinstalled to prevent galvanic corrosion in worst case service. Technical diving has different requirements, of course. Nick Simicich - njs@sc*.em*.ne* - (last choice) njs@bc*.vn*.ib*.co* http://scifi.emi.net/njs.html -- Stop by and Light Up The World!
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