Unstable pH
Your pH is unstable and difficult to stabilise?
This is due to an incorrect TA (alkalinity). The TA must be between 8° f and 14° f (80 mg/l and 140 mg/l).
Solutions
- The TA is too high: add hth® pH MINUS
- The TA is too low: adjust the TA with hth® ALKANAL at the beginning of the season, then once a month. Adjust it gradually by 3° f intervals (30 mg/l )