Critical to pH control, this granular formula effectively raises alkalinity levels which might otherwise cause equipment corrosion.
1. Add 1 oz (2 tbsp) to spa water.
2. Allow water to circulate for 30 minutes.
3. Retest water and repeat Steps 1 and 2 until the desired level is reached.
For best results, dissolve granular products first by adding to a small, plastic pail filled with water.
Chlorine, bromine, ozone and biguanide sanitizers.