1. Turn the spa pump on. 2. Add 1/2 tsp. per 200 gallons to the spa water. 3. Let it circulate for 30 minutes. 4. If pH is still above 7.8, repeat these steps.
Make sure the total alkalinity is reading 125 ppm before adding the product.
*It is important to maintain the pH between 7.2 and 7.8. High pH (above 7.8) can cause scaling and/or cloudy or colored water.