My plaster pool was completed in Nov 2014. Since then, it has been consuming a lot of acid. I was told this would be the case initially, but it does not seem to be slowing down much. It is a saltwater pool that is covered most of the time.
I just tested and got:
TA 130 (too high?)
ph > 8.2 (need to add acid... again)
I have been going through about two gallons of muriatic acid every couple of weeks, and the pH is always back over 8.2 (the top of my scale) when I do another weekly test.