I have a 6 month old shotcrete pool and have been doing all my own maintenance after the PB initial startup. Water has stayed clear and no problems to report.
The water here in Scottsdale is pretty hard (250-300ppm).
Latest test results:
- FC - 5 is target
- TA - 100-110
- CH - 400
- CYA - 35
- pH - 7.8
The pH stays solidly at 7.8. About once a month I lower the pH to 7.2 and aerate with water features to gradually reduce the TA. It lowers TA 10-15 ppm and the pH rises (and stops) always around 7.8.
- To lowering the CH much (by replacing water) is tough here in Scottsdale. Should I worry about it?
- Any issues if my pool stays at these readings?