I am confused. In this thread http://www.poolforum.com/pf2/showthread.php?t=7546 you told me my TA was too high and to read the
"HOWTO: Step-by-Step Guide to lowering your alkalinity" sticky. Having read that I thought that aeration did lower the TA, but now re-reading I have a different understanding (or mis-understanding).

Is it the acid you add that lowers the pH that also lowers the TA? Do we then aerate to raise the pH without raising the TA as well? Is it the combination of these two things (aeration and acid) which effectively lowers the TA but keeps the pH at the right level?

Ed

Quote Originally Posted by Watermom View Post
Aeration doesn't lower TA. Aeration raises ph.

Check out this link.

http://www.poolforum.com/pf2/showthread.php?t=6746