What is scale and how do I remove it from pool surfaces?
Scale is typically calcium carbonate. It usually forms first on the tile or coping at the water line. Follow these steps:
- Test the pool water for pH, Total Alkalinity (TA), Calcium Hardness (CH) and compare the results to the recommended ranges.
- Apply a dilute solution of vinegar (1:1) or dilute muriatic acid (10:1) directly to the scale to dissolve it.
- Adjust TA and pH after the scale has been removed to ensure it doesn't form again. Note: If the pH is low, allow 24 hours for it to recover and test again.
Preventative Follow-up:
Maintain water balance, keeping primarily pH and total alkalinity in the proper ranges.
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