Thanks for the responses, but I 'm wondering how I could be having an algae bloom when my water is crystal clear and blue? The reason I keep my FC level @ 3.0 is because I also use an ozonator. Is this a mistake? Do I really need to keep it at 8.0 or higher?

All the "pH up" options in my pool store are sodium carbonate, what is Borax and why do you reccommend it instead?

Thanks,

Steve