I had a fantastic last year using the BBB method for my pool. For some reason, this year has been a nightmare. My PH goes of the charts and I have to use MA to lower it all the time, and now, for some strange reason, we are having a very bad Monsoon season. My pool was going down 2-2.5 every day all summer until last week. It started to go down 4ppm a day. I can't find my CC test but knew something was off. So I decided to shock my pool which is something I haven't done since using the BBB method. Pool has been vacuumed and scrubbed down. The pool calculator recommended 19 and did that last night. I just tested again and its down to 8, What is going on ! The bizarre thing is, my pool still looks great. BTW, I live in Phoenix AZ.
water temp at 90