So, I'm moving towards the TFP methodology and learning lots on the forum. However, I am still using trichlor tabs for chlorine at the moment (trust me... you don't want to know why). I was reading the Recommended Levels page in Pool School just now and noticed this statement regarding TA:
"if you are using trichlor tablets for chlorine, follow the above recommendations but have TA around 100-150 and be sure it doesn't fall below 100."
Can anyone explain the "...be sure it doesn't fall below 100" bit?... as in, what will happen if it falls below 100?
My current TA stays between 80 and 90. I adjusted my pH to 7.4 yesterday and today it is back to 7.6. Just curious if I need the higher TA to maintain a 7.4 pH (though I realize most would say 7.6 is perfectly fine) OR if something more serious will occur if the level drops below 100.