We have a salt water system Arctic Spa which, over time, began to really irritate my husband’s skin. Our dealer suggested turning off the salt water generator and using Silk Balance instead with low dose chlorine pucks. We have done this now for six months and couldn’t be happier! No more skin issues, no more testing, just beautiful, clear, silky feeling water! Between our cottage and extended retirement vacations, we are away a lot but always return to beautiful water! We love the low maintenance aspects of this product!