Silk Balance is amazing. I began using it about two years ago and it saves me so much time and work testing and trying to get the chemicals correct. It also keeps the water and hot tub nice and sparkly clean. I don’t have any bacteria buildup or foaming. I only need to change the water twice each year. Bullfrog Spas of Ogden has provided superior customer service. They always keep plenty of Silk Balance in stock, have customer friendly business hours and their management provide excellent customer service.