Recently retired, I have taken over the pool maintenance responsibilities from my former pool man. My pool was replastered about 5 months ago. It has 15,000 gallons and a 3/4 hp pump by Pentair. My pool is clear, and all chemicals are in the acceptable range except for the TA. My PH had been over 8 about a week or so ago. It is now down to 7.8. My TA had been around 190 or 200. I have been adding MA for a week. I had been adding about 26 ounces a day with the pump running until last night. Although this has brought down my PH the TA was only coming down a little bit. Last night I added 48 ounces of MA into the deep end with the pump off. I waited 1 hour then turned it on for 12 hours. This morning my PH is unchanged. But the TA is UP to 220!? I can't figure out how to get the TA under control. How much more MA can I safely add to my pool? Thanks, Mike