Hot tub - no chemical natural alternatives

[cheferson]

SO the new pad has a hot tub (spa) . Just opened her up today and took a dip ! Lovin it ! Looking forward to sitting in it after working 13 hour days cooking for 1000's .

Only thing that has me concerned is the use of bromine as a sanitizer . After a quick google search , all kinds of scary #^&#^&#^&#^& pops up . Brominated bread is bad , fire proofed clothing, etc all toxic , causes cancer , thyroid problems , yada yada ....

SO my question is , has anyone tried any of the natural , no nasty chemical spa sanitizer alternatives??? If so , were you happy with it ? Effective ? Any other advice is greatly appreciated too !

Thanks!