Can I mix chlorine and bromine in my hot tub?
Jun 30, 2020 · To dose your hot tub ready for bather use, we advise using chlorine or bromine granules rather than tablets, which should be added only when your Hot Tubs pump is running. It is important to ensure your Spa water is at a normal level of 35 parts per million (ppm) for Free Chlorine and 46 PPM for Bromine before use.