Spa Down is one of the most popular spa chemicals made by Sirona, as the pH of your spa or hot tub must remain steady. If you have a pH that is too high, you’ll notice poor sanitizer efficiency, cloudy water, scale formation, shorter filter runs, and skin and eye irritation. If you’re noticing these symptoms, check your pH and Alkalinity. If it is abnormally high, it is Spa Down to the rescue! Spa Down is a sodium bisulfate chemical that lowers the pH and alkalinity of out-of-balance spas and hot tubs. It is in the granular format, so may be added directly to spa water and broadcasts and begins working immediately. You won’t have a waiting time for soak, there is no foam reaction or residue left behind. Once you have remedied the imbalance with Spa Down, consider using one-time application pH balance to lock in the perfect balance for months to come.