Also, what is the "range" you are talking about when you write "to bring levels back with in range"? Pool industry standards are NOT correct and when using hypochlorite sources of chlorine (e.g. chlorinating liquid, bleach, Cal-Hypo, lithium hypochlorite) you want your TA lower, even lower than 80 ppm if necessary to have the pH be more stable. This is because TA does not just buffer pH, but is a SOURCE of rising pH in its own right because TA is largely a measure of how over-carbonated water is compared to air.