CanadaJack

This sounds a lot like the problems I am having. I know that ph will rise over time with my salt spa, but I go to bed withy ph at 7.2 and in the morning it is 7.8 to 8.2 after running filtration and the salt cell. I have tried to keep my TA between the recommended 80-100, but I've noticed a couple of times that my ph didn't rise and it was when my TA was 40-50. I'm just a little hesitant to keep my TA that low as I have read that it may be corrosive. Any thoughts?