Quote Originally Posted by chem geek
mas985, I'm curious. What is your current TA?

100 to 110 ppm

If it's not unusually high, then indeed something in the SWCG systems would seem to be generating more base than it should. Is your SWCG in clear plastic so that the plates are visible to you?

Unfortunately not
One more thing besides the fill water being high in PH is that the pool is only 1 year old which may still affect the PH.