A curiosity question. With a high pH & high TA reading, I added the appropriate amount of muriatic acid & aerated my spa. If I understand correctly, the acid will decrease the pH level & the aeration will lower the level of TA. For a 2,250 gallon in-ground spa, approxiately how long should the blower be on in order to lower the TA level from 110ppm to 80ppm? Thank you kindly.