Okay - about a week and a half ago I started with TA = 160. Got PH to 6.8 and then turned on the spa jets. In 24 hours it was down to TA=90.

So now mu PH hovers between 7.4-7.8 (new plaster pool). DH and I use the spa a few nights and yesterday my ALK =80 .

Will it continue to drop because of the spa or will it naturally fluctuate?