Hello, I am kind of confused regarding the shocking process. I really do not feel I need to shock since my FC only dropped 3ppm in 24hrs but, there was a bad storm and lots of dirt and other debris as well as frogs starting to hang out at night, so I decided to shock the pool. My confusion is, if my CYA level is 20 and my target shock is 10ppm, how often do I need to add chlorine? It seems that if I raise my FC to shock level and my FC isn't dropping rapidly then I could possibly be adding too much chlorine. So, do I test every hour and if it drops below 10 then raise it back to 10, or, would I be safe to just raise it to 10 and see where my FC level is in the morning? I hope this isn't too confusing, I am a little confused myself about when to add chlorine to properly shock.