Spa Stain and Scale protects spas from the damaging effects of scale buildup and staining due to excessive calcium, iron, copper and other minerals. It works without the use of phosphates or harsh acids. Spa Stain and Scale also works to prevent scale from forming on salt generator cells to help maintain optimum performance.
Note: Cationic polymers used in many clarifiers, flocculants and polyquat algaecides should not be dosed to swimming pool water at the same time as metal control products. Cloudy water, precipitation and reduced product effectiveness may result. Wait 24 hours between additions.
Directions for use:
This product is designed for use in properly balanced spa water.
Initial Treatment of Fresh Fill:
Add 8oz per 200 gallons directly to spa water.
Add 1 oz per 200 gallons directly to spa water.
Note: If water hardness level is above 500ppm, double the weekly maintenance dosage.