Chemical free or natural spa systems?

Question

I have a hot tub and I currently use the bromine, etc. IS there a natural spa system for cleaning the spa that doesn't have all the harsh chemicals?

which one does Kevin Trudeau suggest?

I tried one but it didn't get the spa clean at all. I can't remember but it was yellow and fit inside the filter..

Answer 1

well theres a combination of spa RX (copper/zinc) and hydrogen peroxide (25%)  or an ecosmarte unit and hydrogen peroxide: http://www.swimming-pool-information.com...