First off, a huge thanks to everyone here at TFP...your knowledge has been indispensable. So, I am going on 3 weeks now of BBB. I did a 80% drain and refill 3 weeks ago to resolve a high CYA issue. Here are what my numbers were immediately after refill:
CYA: 50 (slightly less, but I will use this as my number)
Since then I have been mostly focused on FC and pH to get to know how they will act. Due to the heat and amount of sun here in AZ, my pool consumes allot of FC each day. On average over the last 3 weeks I have had to dose about 110oz. of 10% each day. Its cooling off a bit so I am seeing the consumption come down a bit. I see pH rise about 0.2ppm per day, which means I am adding acid to lower back down to 7.2 about every 4 days. Finally today I added 15lb of Calcium Chloride to increase the low CH (fill water passes through a water softener). Here are my numbers as of today:
My big question is related to the TA. I would have expected that it would have come down below 100 by now. Over the past few weeks I have added 239oz. of 14.5%, and 106oz. of 34.6% acid, which according to PoolCalculator combined should have lowered my TA by a total of approximately 53ppm (the calculator at the bottom does not contain those specific % to choose from), however other than the initial drop down to 110, I consistently get reading of 100-110ppm.
Does TA rise, and is it rising faster than I can keep up with it, or is there something else I should be doing? I would like to get it down to the 70-80 range to try to get my pH to stabilize more.
Your thoughts are greatly appreciated.
edit: oh and my water looks great! Never knew it could look so clear and sparkling.