Dear SpaBalancer-Team We have a Canadian Spa Winnipeg hot tub. Until recently, we always used chlorine, which unfortunately irritated my husband's skin, so he was no longer able to use the tub. We came across SpaBalancer on the Internet. We ordered the starter set and tried it out, and we are absolutely thrilled with your product and the pure, clear water. My husband can now enjoy the hot tub again without getting skin rashes. Thanks to the entire...