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Best rock salt for icy driveways?

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Bryan Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jan-13-08 07:48 PM
Original message
Best rock salt for icy driveways?
I ask because when I was last at Home Despot I was stuck between the water-filtration salt and the ice-melt stuff, and the employee I flagged down said that the ice-melt was the better choice but wouldn't say why, so I opted for the water filtration salt.

It seemed like the better buy; the grains were enormous and stuck around for days, and I got 50 lbs. for less than $4.50, rather than $7.50+ for 40 lbs. of the ice-melt. Did I screw up?
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PeaceNikki Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jan-13-08 07:51 PM
Response to Original message
1. Sodium chloride (rock salt, halite) is
Corrosive - damages concrete & vegetation. Calcium chloride melts ice faster than sodium chloride.

I don't know where you are, but it also is better at lower temps.
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Bryan Donating Member (1000+ posts) Send PM | Profile | Ignore Sun Jan-13-08 08:07 PM
Response to Reply #1
2. Thanks, that's what I needed to know!
n/t
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