My current TA level is 75 and I am trying to get it near 60 to help better manage pH which drifts up. 10 days ago I lowered pH from 8 to just above 7 using MA. However, I did not use aeration afterward and let the pH drift upward gradually as it tends to do in my pool. When I checked my TA a week later it is still at 75. Two questions:
1. Does the pH have to be raised rapidly from 7 for it to lower TA ?
2. Does any addition of MA reduce TA, or only when pH goes below a certain number ?
Current readings are as follows: