Quote:
Originally Posted by jimbuna
I could be wrong but as far as my understanding goes, rock salt ceases to work at temperatures below -5 or -8 degrees 
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It does have an optimum effectiveness temp, which is around >20 deg F. My house and the street corner had no ice on it


. Gahd, I love it when I'm right. Plus a lady came out and thanked me for doing something about it

. It's just maddening when the city won't do anything about it.

But this only happens, once, maybe twice a year though.