We have been using SpaBalancer in our Dimension One Spa Dream and are thrilled with this product. Initially, we just used chlorine, but I have to admit that the cost and effort was too much, and I wasn’t convinced with the result. After using SpaBalancer, the water is now crystal clear (incredible!), and it’s easier on the skin. I can only recommend SpaBalancer. Many thanks and keep up the good work. sincerely, Michael B.