Welcome to our forum.
You should read this from a previous post...Drewski
we went to check out tubs the 3 tubs that they had water in at the store had 3 different bases. One was bromine based, another chlorine based and the other was running nature 2. The water in the spa running nature 2 looked cleaner and clearer. When they turned on the one with the bromine in it, it got all cloudy and I told the salesman I wouldn't even want to sit in there.