FreshWater Stain and Scale Defense prevents calcium buildup on spa surfaces and eliminates iron and other metallic staining in spas. Regular application of this product as part of your total spa maintenance program will help keep spa surfaces and plumbing in excellent condition.

Directions for Use:

1. Add 2 ounces (4 tablespoons) of FreshWater Stain and Scale Defense for every 500 gallons of spa water to the filter compartment while the jet pump is running.
2. Leave circulating for at least 2 hours. You may use the spa while this product is working. Add only to spa or hot tub water.