Hi all you experts,
The last three fills of my spa the PH climbs off the chart. I reduce it using a commercial PH reducer to acceptable levels of about 7.4. The TA is usually OK although low on the acceptable range, about 80-90. I treat the water daily with about 3 ozs. of Clorox and weekly with 1-2 oz each of Bright & Clear, Enzyme if needed, shock, and a reduced amount of Spa Perfect.
What would cause the PH to be so high each week.
Thanks for any help!