Hello, I have been Very successful so far using the TFP method on my pool so I thought I should start using on my spa. Ive been using liquid chlorine in my spa for about a month now. Im starting to get concerned about my TA. It seems as Chlorine raises PH I add acid to bring it back down to 7.4. Ive noticed my TA dropping along with it each time. Im currently at a PH of 7.6 and a TA of 80. Will my TA eventually drop to low to keep adding the acid to bring the PH down from the Bleach additions? Or will the Bleach raise the TA enough along with the PH to allow me room to add acid to keep the PH in check. Im wondering if this is the reason sodium Diclor might be a better choice for a spa. I haven't been doing it long enough to see what will actually happen but it seems Im trending in a bad direction. Thanks