Spa Metal Gon (1pt) prevents metal staining of spa surfaces by sequestering iron, copper and other minerals. It prevents iron & other metal buildup from staining your hot tub finish. The best time to treat for metals is when you first fill your hot tub or drain and refill it. Using Defender each week will control metals after the application of Metal Gon at start-up. Spa Metal Gon is compatible with chlorine, bromine, ozone and biguanide sanitizers.
Note: We recommend having your water tested professionally either every 2 weeks or once a month to ensure all chemical levels are correct. This will help maintain crystal clear water & extend the life of your spa.