Quote Originally Posted by chem geek View Post
You have options. With Cal-Hypo, for every 10 ppm Free Chlorine (FC) that is added, it also increases Calcium Hardness (CH) by 7 ppm. So at normal chlorine usage rates, it will take too long to raise your CH. At 2 ppm FC per day, it's an increase of a little over 40 ppm per month. Nevertheless, it does say that you can use Cal-Hypo as a chlorine source without concern for over-saturation.

To increase CH faster, you would use Calcium Chloride. This is found in products such as Peladow, Dowflake and Tetra or you could pay more and get Calcium Hardness Increaser at a pool store (it's the same thing). You can use The Pool Calculator to calculate dosages.
So essentially calcium chloride is what is used to melt snow and ice in the winter, correct? I found a product at home depot called "Vaporizer" which says its 100% calcium chloride pellets. It's sold in a 50 lb bag for $17.97. I'd link the product but im still a restricted member so I cant yet.

Does that fit the bill, and how much should I add to the pool? Its sitting around 200 ppm.

Thank ya much!