Noticed a few things while doing the last test this morning and am wondering if this is "normal".
1) Does pH indicator raise after the water is just sitting in the test kit? I performed a pH test using the kit the PB gave me. Immediately after after shaking, the pH was a color between between 7.5 and 7.8. After letting it sit on the table (in the sun) while the better half and I took a dip (maybe 15 minutes), it was at 8.2. Is it normal for the indicator to go up? If so, I assume the immediate indication is the correct one to record?
2) Does TA fluctuate up and down? Since this is a new pool, I have been adding acid daily to keep the pH in range. I have noticed TA has gone from 90, then to 80 a few days later, then to 95, and now it is at 90. Still not in the recommended ranges for TFP. Since pH is fluctuating up and down and being controlled with acid daily...is it safe to add soda about 30 minutes after the acid is added (and circulated on high) or would you wait longer?
3) My CC is at 6, but my pool builder recommends 1.5 since I have an O3 Ozonator. Do you guys agree with this advice? Can I really go that low with Chorline and still prevent algae?
P.S. - Since everyone likes to see numbers, this morning's test was:
Water Temp: 70
10,300g IG Plaster-StoneScapes Tropics Blue, cartridge filter, 2-spd Pentair pump, with RS-8 iAqualink