I'm searching for the best alternative to chlorine for an indoor pool. We just moved to a home with one and would like to switch to a non- or low-chlorine system due to the health issues related to chlorine (also I think I'm particularly sensitive to the chlorine smell). My husband just purchased E-Z Pool online, but I have read that copper sulfate shouldn't be used in a pool. Does anyone have information on this product: pros and cons? I would like to have a saltwater pool if possible, but I don't know if we would be able to do everything that is involved since we are renting the home.