Wow, you're fast

No, pool is not new...We really don't know how old...house 14 years old, we've been here 2.5 years...

I just posted again in this forum about my Calcium level...

I've read the posts about lowering TA, and I need to keep pH low and aerate the water. We have a fountain and 4 returns into the pool, and we always keep the fountain on when the pump is on (it looks pretty ). So, could that be why my TA has been lowering and my pH drifting up? I've been lowering my TA without really trying to? And I could get it to go faster by keeping the pH lower?

I was just concerned about the huge discrepancy between my numbers and the pool store numbers...