I have an inground pool in Florida.
It has an Aqua-Rite Chlorinator, and solar heater. The pool is about 7 years old and has not be much of a problem.

I seemed to be having some issues with the pool coating and started paying much more attention to the pH.
The issues seemed to stop any further degrading of the coating and I was thrilled.

My issue is the pool has a very high pH, 8.6+ most of the time. To bring it into normal 7.8 to 8.2 (for me) I have to add acid (muriatic) at least twice per week.

I know that Sodium Hypochlorite has a very high pH, and I assume chlorine also has a high pH.
Is this the cause of the high pH? Also the water added comes from the Melbourne, Florida water system and carries an elevated ph normally.