Bill Freeman wrote:

Not a problem for testing, but I would be very leery of using
straight water for any extended period due to corrosion
problems.

Al Gietzen wrote:

Is there some reason to believe that the corrosion inhibitors that you can
buy for use in aluminum engines don't give you as good protection as those
in anti-freeze?

Al

Bill Freeman wrote:

None whatsoever.   Corrosion inhibitors can work fine without e or p glycol.
I thought the discussion was of pure water.  Also, be sure that whatever
corrosion inhibitors you use have a lot of testing, could do a lot of damage
if they fail early or don't work at high temp, etc.

Bill

 
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