Welcome to our forum.
Chas, I read earlier you are using Brilliance in your spa. I am using Baqua and many problems. We are going to drain and refill our Tiger River Caspian today. Going to Hot Springs Dealear in Michigan today to buy new chemicals. They are recommending Nature 2, but I do believe I seen Brilliance there also. Wondering why they did not recommend Brilliance to me? Do you recommend Brilliance over Nature 2? We do not have a ozone system in our spa, do we need one with Brilliance? Also do you recommend ozone ?? Thanks for all the input you give to this form. Lynnette