I've never had a hot tub and ordered one with a fresh water salt system. I was recently told that the salt system doesn't work well in NM due to harder water and fails quickly. The dealer assured me that remedies exist to take care of hard water. Then I read that salt water splash from the tub will damage the new concrete patio. Finally, I saw an online video saying that hot tub salt systems, unlike pools, release carcinogens in the steam that are hazardous. Any information anyone can provide would be appreciated.