I love my hot tub but was always worried about the heat and chemicals leaching into my body. I have Thyroid issues and Chlorine is not good. Then in January I started having trouble keeping it clean and balanced. I had too much acid from the ChlorBrite and had to empty. Then could not keep the PH regulated, water looked bad and sometimes smelled. Had to empty AGAIN! Then started doing research on Ozone generators. (I do have ozone cleaner on the tub but it's not as strong) and after much deliberation bought my Eurospa cleaner. I can not find words to express strongly enough how much I love it!!!! The staff was very supportive helping me with questions on start up. The water is always clear, my skin does not itch anymore and once and awhile I throw in some bleach. The best purchase I ever made and recommend anyone with a tub to try it. Your health is worth it..and also no more chemicals!