Having used the last of my Trichlor pucks I have moved entirely to the BBB method of treating my pool for the last 3 weeks. The only issue I seem to be having this year is I can't seem to maintain the Ph. I adjust as directed by the pool calculator and within 2 days or so the Ph seems to drop again. Sometimes the drop is substantial like down to 6.8 - My current numbers are listed here. If anyone can shed some light as to why this may be occurring please jump in - Water is crystal clear and I have no algae growth at all.
FC = 8.5
CC = 0
PH = 7.2 (down from 7.5 yesterday)
TA = 70
CYA = 80
Water Temp = 82 (Finally broke 80 due to heat - normally 76 is it!)