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Mr Reefer 1690
10/12/2009, 10:50 AM
Home Depot has Prestone Driveway Heat in stock again. Is this still safe to use for the 2 part dosing?

Thanks

bertoni
10/12/2009, 05:41 PM
That product is based on the new Dow product, and it might be safe, but it does have an elevated bromine, compared to the older product. A number of people seem to be successful with it, though.

atkinsg
10/12/2009, 07:47 PM
I use Prestone Driveway Heet for the CaCl2 of my 2 part, but it is from last winter. Is it different now?

bertoni
10/12/2009, 10:03 PM
The switchover was before that. I forget exactly when it happened.

Mr Reefer 1690
10/13/2009, 04:31 AM
Atkinsg
Is there a lot # on the bag? Anything that I could use to compare it to the product I just purchased. I assume you didn't notice any issues when you used yours in the 2 part dosing?

thanks

Randy Holmes-Farley
10/13/2009, 04:41 AM
It swapped several years ago. It is highly unlikely that you have old Dow. It is also unlikely that Prestone puts the Dow code on the bag, and only the Dow code is known to be able to distinguish them.

Check here on using the new material, which is apparently OK as many people have done it for several years:

http://www.reefcentral.com/forums/showthread.php?t=1527547