Are there any adverse effects of adding calcium chloride ice melt and salt at the same time? Tested 275 CH and 1800 salt a week ago. Poolmath said to add 40 lbs of calcium chloride, which I did using 94% calcium chloride ice melt, along with 80lbs of salt, knowing this was going to be short of 3400 but have overdone it before and didn't want to have to drain any water. I tested again yesterday and came back with 250 CH. Tested again today and got the same results. I wouldn't think there would be an issue with adding both at the same time but was racking my brain for any possible reason to see no increase.