Can someone tell me how much shock to add if I have .5 CC and 1.5 FC in a 25,000 gallon pool using using 70% calcium hypochlorite? I figured it to be 16.52. BUT I had to go to the pool store for the shock. The guy there said to throw two bags in tonight and then check again tomorrow. I'm trying to be more specific than just randomly throwing bags in. This is my first post and I am hoping that someone will understand what I'm doing. Thanks so much.