Hello, I am writing to share with you how much my husband and I love the SilkBalance water conditioner used for our Olympic hot tub. My husband and I bought our hot tub in July of 2013, becoming active users going in around 3-5 times a week, sun, shine, or rain. We have used the Silk Balance formula from the very beginning and have found that it has enhanced our relaxation experience. Unlike other hot tubs that we had used, after dipping into our spa, there is never that weird itchy feeling on the skin that is often felt or the chemically odored scent that is often smelt ; when using the SilkBalance, the water is left clean, making anyone who gets in and out of the hot tub feeling better about the water that they soaked in. Everyone who has ever gotten into our hot tub has noticed the difference even with out knowing that SilkBalance was even used. SilkBalance is such a great product and we will continue to use it for as long as we own our hot tub. Thank you! Winter Roberts