Strange issue with Alkalinity and pH

[FormerBromineUser]

If you really want to attack the TA issue, add baking soda in small quantities until you reach your goal or pH stabilizes. It will raise your pH some, so I still recommend lowering the pH first.

Jim has an interesting idea. When you get your pH and TA stable, adding borates has many benefits. The process of adding them is a roller coaster ride that swings your pH high with borax and low with MA, so I would recommend waiting for now.
Here is a link to the process: http://www.poolforum.com/pf2/showthr...stant-to-Algae
If you decide to go for it, test part way through. I found that I reached 50ppm about half way through the recommended dosage.