Calcium Chloride = Ice Melt?


Well-known member
Sep 7, 2018
So I need to add some calcium chloride. I'm at 200 the calc says I should be at 250 - 300. Is Ice melt the same thing? 50lb bag of Prestone ice melt at Lowes is $20.
Use it or buy it from the pool store at $25 for 10lb?


TFP Expert
LifeTime Supporter
Jan 4, 2016
Sydney, NSW, Australia
Pool Size
Salt Water Generator
People here commonly use road de-icer which is the same stuff. The risk is impurities that can leave stains on a plaster pool. If you use the search function, you should be able to find which brands people here trust. Try "ice melt" "de-icer" etc. and I'm betting you'll find some good information. It's probably fine, but worth the time to check it out here first.

Another option is to use calcium hypochlorite (cal-hypo) as your chlorine source for a while, which causes calcium to rise over time. Safety caution: do not put cal-hypo pucks in the inline chlorinator at the same time as trichlor pucks. The two together can cause explosion and nasty gases.
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