I started using SilkBalance four months ago when I got my new Hot Spot Spa. During that time I have had no water problems of any kind. The water has been clear and there has been no foam, no odor, and the PH has been easy to maintain. And the water doesn’t just look good. it feels good too. I am glad that the people at Baker Pool & Spa told me about this product. Doug B. and family Manchester, MO.