Pool Stain Treat - Directions For Use
To remove stains: Place the "Spotting Bag" over the stain and allow the bag to dissolve.
To remove scale: Use 1 oz. to the full bag depending upon the level of scale being treated.
To prevent scale: Use 1 oz. in up to 625 gallons. Apply to fresh water when filling your spa.
Note: Pool Stain Treat will lower your pH, so check your pH and adjust as needed. There is 4 ounces in the "Spotting Bag", so if using a smaller quantity, crush the product in to a granular and remove the inner bag. 1 oz. is approximately 2 tablespoons.