Saltwater hot tubs are often misrepresented by salesman. Your water still needs to be balanced. There is usually an electrode to clean and replace. Also, saltwater is corrosive and people on salt systems tend to have higher failure rates.
Keep in mind that Salt is NaCl or Sodium Chloride. Salt systems use electrolysis to create Chlorine from Sodium Chloride. It is, in essence, just a chlorine generator. Adding chlorine manually is cheaper and pretty darn easy. I personally just use granular chlorine in my tub. It's cheap, easy and does the job well. Done properly, there is little to no odor or irritation.
