What makes my TA rise? After spending almost a week adding Muratic Acid and then aerating, repeating & repeating, I was able to get my TA to lower from 110 to about 75-80. Now 10-12 days later the TA has risen to 100 again. I have added about 1 inch of make up water and we had 2 thunderstorms, that added about 1.5 inches of water to the pool - is the rain the culprit?
I have borates in the pool (about 35ppm), and it is my understanding that it will now be harder to lower the TA level. So before I start the process again, and also finish adding borates to 50ppm, I thought I would ask if it is necessary to lower the TA again? Thanks.