I have alkalinity in the 150 range, which I am trying to lower using information from this forum.
My ph has always seemed to rise to the 7.8 range, I add acid and in a week or 2 it is back up there.
I have a built in spa that is higher than the pool with a spillway that 'splashes' into the pool when the filter is running, (about 8 hours a day).
Am I always going to have the high ph problem because this spillway acts as an aerator?
It is a remodeled pool about 3 years old, built in with a pebbletec finish. 21,000 gal. Cartridge Flilter CCP-420