Rich Pyle wrote:

Under heavy use in sea water, the grease helps prevent corrosion from 
forming inside the ambient pressure chamber. This used to be a relatively 
big problem for me diving in the tropics until I added the SPEC to my
SP Mk-10s.  For me, the question is why doesn't everyone use the stuff. 
---------------------------------------------------------------------------

That SPEC system makes me corrosion-paranoid.  I worry about a little salt water
bubble getting trapped by the grease against the metal of the regulator, and 
causing hidden corrosion.

Here's what I do: Casual rinsing doesn't seem to prevent all corrosion, so  I 
throw my  regulator (capped), lights, tools and everything else into a big tub 
of fresh water.  I leave it there for an hour or so, or sometimes overnight. I 
then hose it off and let it dry.

Occasionally I will disassemble everything and soak it in a 50-50 vinegar/ water
solution. I use cheap, white vinegar, although any acidic will do.  The US 
Diver's service manual recommends a weak nitric acid solution. I like vinegar, 
because it's something I have around the house anyway.  The acid dissolves 
verdgris and salts, leaving the chrome squeaky clean and free of green corrosion
around the seams.

Andy Cohen

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