I have been battling getting my TA down. 2 gallons of MA over the past week to get to around 90. PH has been 7.4 - 7.8 after everything settles. I tested the source water and TA is 140-160 ish. Will I constantly be battling this? Pool was completed last fall. Is this because of a new build. I have not had to use source water for a while, but since getting ready for opening I have been trying to lower TA. My source water TC 3.0 CC 0 PH 7.6 TA 140. Located DFW area. I have Brockovich water.