On Dec 15, 8:18*am, 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?

Strangely enough that is true. Blends of glycol and water have a
lower freezing point that straight glycol. Go figure....