I have used the SilkBalance product for almost 2 years now and I still can’t believe how silky and smooth the water is. Everybody that has spent time in my hot tub has said something to me about the feel of the water BEFORE I say what it is! I don’t even bother getting into hotel spas, because why would I? I have the best at home with the SilkBalance product in MY tub, and I don’t need to feel that itchy skin feeling that Chlorine products give me, ever again! Thank You Olympic Hot Tub Company again for the healthiest option available for any Hot Tub owner: SilkBalance!! Sincerely, Tom Keeslar