I may need to get a new tub. Mine is 30 years old, and the heater doesn't appear to be working.
Are most new tubs salt water compatible? Nature 2 compatible? Ozone, ion compatible? Are the spa brand and the sanitizer independent of each other? Or are you locked into a sanitizer method with a certain brand of spa? Bromine gives me eczema, and it's hard to keep the levels high enough to sanitize and low enough to not irritate my skin.
Thanks!