So I have my pool closed the other day and noticed they added the following chem's:
4 gallons of liquid chlorine
1 qt of proguard algae 60
1 proguard stain scale inhibitor
I wasn't aware they were going to add these until after I was invoiced and I wasn't home when they did closed it. Lesson learned for next year, I am assuming that these chemicals are unnecessary as I have always maintained acceptable FC levels I just want to confirm.