Kimbers

We’re switching from bromine to chlorine in our hot tub because we put a salt water pool in the backyard and don’t want to mess up the pool chemistry. The hot tub is a 2004 Tiger River Bengal model, which came with our recently purchased house. The hot tub sat empty in the yard for 2 months while the pool was built. We refilled it, added a product called Clean Start, ran it for a few hours, and found the water had turned a sickly greenish yellow color, which we we drained. I took a picture in to the local spa store. The clerk there gave me another bottle of Clean Start and some SpaGuard chlorinating concentrate. He told us to run 3 caps of the chlorinating concentrate for a few hours or overnight and the the Clean Start again and that should fix the issue. The water was lighter in color, but this time I took a sample in to be tested. I spoke to a different clerk, and he tested the sample and told me there is a lot of bromine in the water along with chlorine, and not to get in it because it is harmful. He thinks the bromine is stuck in the plumbing. He gave me two bottles of Clean Start, told me to put both in and run the jets overnight, which I did. It’s running now. When my husband gets home from work today, we will empty the tub again, refill it, and take a sample in for testing. I just found this forum, among other publications, one of which said that it is not possible to switch from bromine to chlorine. Is that true? Is trying to change the chemistry in our spa an exercise in futility? Please help.