On Mon, 15 Dec 2008 11:18:42 -0200, loonfellow@lakeside. wrote:

On Thu, 11 Dec 2008 15:13:32 GMT, (Richard Casady) wrote:

On Wed, 10 Dec 2008 17:21:31 -0500, Dave Brown
wrote:

PLUS, it will be mixing with the water that is
already there thereby reducing the protection level (and possibly
passing the threshold of protection).

Adding 10% water to pure glycol, which freezes at 8 F, lowers the
freezing point to -90 F.

Casady

Since water freezes at 32 F, how could that possibly be true?

It may not be intuitive, but it is an observable fact.
What is the freezing point of salt? It does lower the freezing point
of water.

Casady