When using UltraShock, can I add chlorine to the hot tub or are these chemicals incompatible?
Answer:
You can add chlorine to the hot tub water when using UltraShock. However, it should not be organic chlorine (most commercially available chlorine is organic chlorine), but inorganic chlorine. Such as calcium hypochlorite granules. This chlorine does not contain cyanuric acid. With organic chlorine, which contains cyanuric acid, the cyanuric acid will also accumulate in the water. It makes the water corrosive and negatively affects the efficiency of Ultrashock.