I am relatively new to pool testing. I purchased the T100 test kit and have a question about testing the TA. In the directions it states to fill the vial to 25 ml., then add 2 drops of R007 to the vial, add 5 drops of R008 and it will turn green, then add 1 drop at a time of R009 until the "color" turns red. I am confused if this means the color of the water in the vial, or the color of the drops that come out of the R009 bottle. I have added and added and added muratic acid and still my TA is testing around 200 IF I wait for the "solution" in the vial to turn somewhat pink. My pH is down to around 7.1 or 7.2. What should I do to get the TA to its normal level?
AG pool, 15,700 gallons