I've seen this happen before but wasn't sure it was happening and I think chemgeek said CYA will increase TA.
I tested a pool a couple weeks ago and TA was at 50. I added 4 lbs of CYA as it needed topping up and now this week the TA is 80. I was going to add 2 lbs of baking soda to bring TA up to 60 but don't have to anymore.
I tested a pool a couple weeks ago and TA was at 50. I added 4 lbs of CYA as it needed topping up and now this week the TA is 80. I was going to add 2 lbs of baking soda to bring TA up to 60 but don't have to anymore.