1. Add 3 tsp. per 500 gallons to the spa water while the pump is on. 2. Spread the shock across the surface of the water. 3. Check the chemicals in the water after 15 minutes.
For the best results, add this product to the spa water every week.
*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.
